lib/Geocode.php

   1 <?php
   2         require_once(CONST_BasePath.'/lib/PlaceLookup.php');
   3
   4         class Geocode
   5         {
   6                 protected $oDB;
   7
   8                 protected $aLangPrefOrder = array();
   9
  10                 protected $bIncludeAddressDetails = false;
  11                 protected $bIncludeExtraTags = false;
  12                 protected $bIncludeNameDetails = false;
  13
  14                 protected $bIncludePolygonAsPoints = false;
  15                 protected $bIncludePolygonAsText = false;
  16                 protected $bIncludePolygonAsGeoJSON = false;
  17                 protected $bIncludePolygonAsKML = false;
  18                 protected $bIncludePolygonAsSVG = false;
  19                 protected $fPolygonSimplificationThreshold = 0.0;
  20
  21                 protected $aExcludePlaceIDs = array();
  22                 protected $bDeDupe = true;
  23                 protected $bReverseInPlan = false;
  24
  25                 protected $iLimit = 20;
  26                 protected $iFinalLimit = 10;
  27                 protected $iOffset = 0;
  28                 protected $bFallback = false;
  29
  30                 protected $aCountryCodes = false;
  31                 protected $aNearPoint = false;
  32
  33                 protected $bBoundedSearch = false;
  34                 protected $aViewBox = false;
  35                 protected $sViewboxSmallSQL = false;
  36                 protected $sViewboxLargeSQL = false;
  37                 protected $aRoutePoints = false;
  38
  39                 protected $iMaxRank = 20;
  40                 protected $iMinAddressRank = 0;
  41                 protected $iMaxAddressRank = 30;
  42                 protected $aAddressRankList = array();
  43                 protected $exactMatchCache = array();
  44
  45                 protected $sAllowedTypesSQLList = false;
  46
  47                 protected $sQuery = false;
  48                 protected $aStructuredQuery = false;
  49
  50                 function Geocode(&$oDB)
  51                 {
  52                         $this->oDB =& $oDB;
  53                 }
  54
  55                 function setReverseInPlan($bReverse)
  56                 {
  57                         $this->bReverseInPlan = $bReverse;
  58                 }
  59
  60                 function setLanguagePreference($aLangPref)
  61                 {
  62                         $this->aLangPrefOrder = $aLangPref;
  63                 }
  64
  65                 function setIncludeAddressDetails($bAddressDetails = true)
  66                 {
  67                         $this->bIncludeAddressDetails = (bool)$bAddressDetails;
  68                 }
  69
  70                 function getIncludeAddressDetails()
  71                 {
  72                         return $this->bIncludeAddressDetails;
  73                 }
  74
  75                 function getIncludeExtraTags()
  76                 {
  77                         return $this->bIncludeExtraTags;
  78                 }
  79
  80                 function getIncludeNameDetails()
  81                 {
  82                         return $this->bIncludeNameDetails;
  83                 }
  84
  85                 function setIncludePolygonAsPoints($b = true)
  86                 {
  87                         $this->bIncludePolygonAsPoints = $b;
  88                 }
  89
  90                 function getIncludePolygonAsPoints()
  91                 {
  92                         return $this->bIncludePolygonAsPoints;
  93                 }
  94
  95                 function setIncludePolygonAsText($b = true)
  96                 {
  97                         $this->bIncludePolygonAsText = $b;
  98                 }
  99
 100                 function getIncludePolygonAsText()
 101                 {
 102                         return $this->bIncludePolygonAsText;
 103                 }
 104
 105                 function setIncludePolygonAsGeoJSON($b = true)
 106                 {
 107                         $this->bIncludePolygonAsGeoJSON = $b;
 108                 }
 109
 110                 function setIncludePolygonAsKML($b = true)
 111                 {
 112                         $this->bIncludePolygonAsKML = $b;
 113                 }
 114
 115                 function setIncludePolygonAsSVG($b = true)
 116                 {
 117                         $this->bIncludePolygonAsSVG = $b;
 118                 }
 119
 120                 function setPolygonSimplificationThreshold($f)
 121                 {
 122                         $this->fPolygonSimplificationThreshold = $f;
 123                 }
 124
 125                 function setDeDupe($bDeDupe = true)
 126                 {
 127                         $this->bDeDupe = (bool)$bDeDupe;
 128                 }
 129
 130                 function setLimit($iLimit = 10)
 131                 {
 132                         if ($iLimit > 50) $iLimit = 50;
 133                         if ($iLimit < 1) $iLimit = 1;
 134
 135                         $this->iFinalLimit = $iLimit;
 136                         $this->iLimit = $this->iFinalLimit + min($this->iFinalLimit, 10);
 137                 }
 138
 139                 function setOffset($iOffset = 0)
 140                 {
 141                         $this->iOffset = $iOffset;
 142                 }
 143
 144                 function setFallback($bFallback = true)
 145                 {
 146                         $this->bFallback = (bool)$bFallback;
 147                 }
 148
 149                 function setExcludedPlaceIDs($a)
 150                 {
 151                         // TODO: force to int
 152                         $this->aExcludePlaceIDs = $a;
 153                 }
 154
 155                 function getExcludedPlaceIDs()
 156                 {
 157                         return $this->aExcludePlaceIDs;
 158                 }
 159
 160                 function setBounded($bBoundedSearch = true)
 161                 {
 162                         $this->bBoundedSearch = (bool)$bBoundedSearch;
 163                 }
 164
 165                 function setViewBox($fLeft, $fBottom, $fRight, $fTop)
 166                 {
 167                         $this->aViewBox = array($fLeft, $fBottom, $fRight, $fTop);
 168                 }
 169
 170                 function getViewBoxString()
 171                 {
 172                         if (!$this->aViewBox) return null;
 173                         return $this->aViewBox[0].','.$this->aViewBox[3].','.$this->aViewBox[2].','.$this->aViewBox[1];
 174                 }
 175
 176                 function setRoute($aRoutePoints)
 177                 {
 178                         $this->aRoutePoints = $aRoutePoints;
 179                 }
 180
 181                 function setFeatureType($sFeatureType)
 182                 {
 183                         switch($sFeatureType)
 184                         {
 185                         case 'country':
 186                                 $this->setRankRange(4, 4);
 187                                 break;
 188                         case 'state':
 189                                 $this->setRankRange(8, 8);
 190                                 break;
 191                         case 'city':
 192                                 $this->setRankRange(14, 16);
 193                                 break;
 194                         case 'settlement':
 195                                 $this->setRankRange(8, 20);
 196                                 break;
 197                         }
 198                 }
 199
 200                 function setRankRange($iMin, $iMax)
 201                 {
 202                         $this->iMinAddressRank = (int)$iMin;
 203                         $this->iMaxAddressRank = (int)$iMax;
 204                 }
 205
 206                 function setNearPoint($aNearPoint, $fRadiusDeg = 0.1)
 207                 {
 208                         $this->aNearPoint = array((float)$aNearPoint[0], (float)$aNearPoint[1], (float)$fRadiusDeg);
 209                 }
 210
 211                 function setCountryCodesList($aCountryCodes)
 212                 {
 213                         $this->aCountryCodes = $aCountryCodes;
 214                 }
 215
 216                 function setQuery($sQueryString)
 217                 {
 218                         $this->sQuery = $sQueryString;
 219                         $this->aStructuredQuery = false;
 220                 }
 221
 222                 function getQueryString()
 223                 {
 224                         return $this->sQuery;
 225                 }
 226
 227
 228                 function loadParamArray($aParams)
 229                 {
 230                         if (isset($aParams['addressdetails'])) $this->bIncludeAddressDetails = (bool)$aParams['addressdetails'];
 231                         if (isset($aParams['extratags'])) $this->bIncludeExtraTags = (bool)$aParams['extratags'];
 232                         if (isset($aParams['namedetails'])) $this->bIncludeNameDetails = (bool)$aParams['namedetails'];
 233
 234                         if (isset($aParams['bounded'])) $this->bBoundedSearch = (bool)$aParams['bounded'];
 235                         if (isset($aParams['dedupe'])) $this->bDeDupe = (bool)$aParams['dedupe'];
 236
 237                         if (isset($aParams['limit'])) $this->setLimit((int)$aParams['limit']);
 238                         if (isset($aParams['offset'])) $this->iOffset = (int)$aParams['offset'];
 239
 240                         if (isset($aParams['fallback'])) $this->bFallback = (bool)$aParams['fallback'];
 241
 242                         // List of excluded Place IDs - used for more acurate pageing
 243                         if (isset($aParams['exclude_place_ids']) && $aParams['exclude_place_ids'])
 244                         {
 245                                 foreach(explode(',',$aParams['exclude_place_ids']) as $iExcludedPlaceID)
 246                                 {
 247                                         $iExcludedPlaceID = (int)$iExcludedPlaceID;
 248                                         if ($iExcludedPlaceID)
 249                                                 $aExcludePlaceIDs[$iExcludedPlaceID] = $iExcludedPlaceID;
 250                                 }
 251
 252                                 if (isset($aExcludePlaceIDs))
 253                                         $this->aExcludePlaceIDs = $aExcludePlaceIDs;
 254                         }
 255
 256                         // Only certain ranks of feature
 257                         if (isset($aParams['featureType'])) $this->setFeatureType($aParams['featureType']);
 258                         if (isset($aParams['featuretype'])) $this->setFeatureType($aParams['featuretype']);
 259
 260                         // Country code list
 261                         if (isset($aParams['countrycodes']))
 262                         {
 263                                 $aCountryCodes = array();
 264                                 foreach(explode(',',$aParams['countrycodes']) as $sCountryCode)
 265                                 {
 266                                         if (preg_match('/^[a-zA-Z][a-zA-Z]$/', $sCountryCode))
 267                                         {
 268                                                 $aCountryCodes[] = strtolower($sCountryCode);
 269                                         }
 270                                 }
 271                                 $this->aCountryCodes = $aCountryCodes;
 272                         }
 273
 274                         if (isset($aParams['viewboxlbrt']) && $aParams['viewboxlbrt'])
 275                         {
 276                                 $aCoOrdinatesLBRT = explode(',',$aParams['viewboxlbrt']);
 277                                 $this->setViewBox($aCoOrdinatesLBRT[0], $aCoOrdinatesLBRT[1], $aCoOrdinatesLBRT[2], $aCoOrdinatesLBRT[3]);
 278                         }
 279                         else if (isset($aParams['viewbox']) && $aParams['viewbox'])
 280                         {
 281                                 $aCoOrdinatesLTRB = explode(',',$aParams['viewbox']);
 282                                 $this->setViewBox($aCoOrdinatesLTRB[0], $aCoOrdinatesLTRB[3], $aCoOrdinatesLTRB[2], $aCoOrdinatesLTRB[1]);
 283                         }
 284
 285                         if (isset($aParams['route']) && $aParams['route'] && isset($aParams['routewidth']) && $aParams['routewidth'])
 286                         {
 287                                 $aPoints = explode(',',$aParams['route']);
 288                                 if (sizeof($aPoints) % 2 != 0)
 289                                 {
 290                                         userError("Uneven number of points");
 291                                         exit;
 292                                 }
 293                                 $fPrevCoord = false;
 294                                 $aRoute = array();
 295                                 foreach($aPoints as $i => $fPoint)
 296                                 {
 297                                         if ($i%2)
 298                                         {
 299                                                 $aRoute[] = array((float)$fPoint, $fPrevCoord);
 300                                         }
 301                                         else
 302                                         {
 303                                                 $fPrevCoord = (float)$fPoint;
 304                                         }
 305                                 }
 306                                 $this->aRoutePoints = $aRoute;
 307                         }
 308                 }
 309
 310                 function setQueryFromParams($aParams)
 311                 {
 312                         // Search query
 313                         $sQuery = (isset($aParams['q'])?trim($aParams['q']):'');
 314                         if (!$sQuery)
 315                         {
 316                                 $this->setStructuredQuery(@$aParams['amenity'], @$aParams['street'], @$aParams['city'], @$aParams['county'], @$aParams['state'], @$aParams['country'], @$aParams['postalcode']);
 317                                 $this->setReverseInPlan(false);
 318                         }
 319                         else
 320                         {
 321                                 $this->setQuery($sQuery);
 322                         }
 323                 }
 324
 325                 function loadStructuredAddressElement($sValue, $sKey, $iNewMinAddressRank, $iNewMaxAddressRank, $aItemListValues)
 326                 {
 327                         $sValue = trim($sValue);
 328                         if (!$sValue) return false;
 329                         $this->aStructuredQuery[$sKey] = $sValue;
 330                         if ($this->iMinAddressRank == 0 && $this->iMaxAddressRank == 30)
 331                         {
 332                                 $this->iMinAddressRank = $iNewMinAddressRank;
 333                                 $this->iMaxAddressRank = $iNewMaxAddressRank;
 334                         }
 335                         if ($aItemListValues) $this->aAddressRankList = array_merge($this->aAddressRankList, $aItemListValues);
 336                         return true;
 337                 }
 338
 339                 function setStructuredQuery($sAmentiy = false, $sStreet = false, $sCity = false, $sCounty = false, $sState = false, $sCountry = false, $sPostalCode = false)
 340                 {
 341                         $this->sQuery = false;
 342
 343                         // Reset
 344                         $this->iMinAddressRank = 0;
 345                         $this->iMaxAddressRank = 30;
 346                         $this->aAddressRankList = array();
 347
 348                         $this->aStructuredQuery = array();
 349                         $this->sAllowedTypesSQLList = '';
 350
 351                         $this->loadStructuredAddressElement($sAmentiy, 'amenity', 26, 30, false);
 352                         $this->loadStructuredAddressElement($sStreet, 'street', 26, 30, false);
 353                         $this->loadStructuredAddressElement($sCity, 'city', 14, 24, false);
 354                         $this->loadStructuredAddressElement($sCounty, 'county', 9, 13, false);
 355                         $this->loadStructuredAddressElement($sState, 'state', 8, 8, false);
 356                         $this->loadStructuredAddressElement($sPostalCode, 'postalcode' , 5, 11, array(5, 11));
 357                         $this->loadStructuredAddressElement($sCountry, 'country', 4, 4, false);
 358
 359                         if (sizeof($this->aStructuredQuery) > 0)
 360                         {
 361                                 $this->sQuery = join(', ', $this->aStructuredQuery);
 362                                 if ($this->iMaxAddressRank < 30)
 363                                 {
 364                                         $sAllowedTypesSQLList = '(\'place\',\'boundary\')';
 365                                 }
 366                         }
 367                 }
 368
 369                 function fallbackStructuredQuery()
 370                 {
 371                         if (!$this->aStructuredQuery) return false;
 372
 373                         $aParams = $this->aStructuredQuery;
 374
 375                         if (sizeof($aParams) == 1) return false;
 376
 377                         $aOrderToFallback = array('postalcode', 'street', 'city', 'county', 'state');
 378
 379                         foreach($aOrderToFallback as $sType)
 380                         {
 381                                 if (isset($aParams[$sType]))
 382                                 {
 383                                         unset($aParams[$sType]);
 384                                         $this->setStructuredQuery(@$aParams['amenity'], @$aParams['street'], @$aParams['city'], @$aParams['county'], @$aParams['state'], @$aParams['country'], @$aParams['postalcode']);
 385                                         return true;
 386                                 }
 387                         }
 388
 389                         return false;
 390                 }
 391
 392                 function getDetails($aPlaceIDs)
 393                 {
 394                         //$aPlaceIDs is an array with key: placeID and value: tiger-housenumber, if found, else -1
 395                         if (sizeof($aPlaceIDs) == 0)  return array();
 396
 397                         $sLanguagePrefArraySQL = "ARRAY[".join(',',array_map("getDBQuoted",$this->aLangPrefOrder))."]";
 398
 399                         // Get the details for display (is this a redundant extra step?)
 400                         $sPlaceIDs = join(',', array_keys($aPlaceIDs));
 401
 402                         $sImportanceSQL = '';
 403                         if ($this->sViewboxSmallSQL) $sImportanceSQL .= " case when ST_Contains($this->sViewboxSmallSQL, ST_Collect(centroid)) THEN 1 ELSE 0.75 END * ";
 404                         if ($this->sViewboxLargeSQL) $sImportanceSQL .= " case when ST_Contains($this->sViewboxLargeSQL, ST_Collect(centroid)) THEN 1 ELSE 0.75 END * ";
 405
 406                         $sSQL = "select osm_type,osm_id,class,type,admin_level,rank_search,rank_address,min(place_id) as place_id, min(parent_place_id) as parent_place_id, calculated_country_code as country_code,";
 407                         $sSQL .= "get_address_by_language(place_id, -1, $sLanguagePrefArraySQL) as langaddress,";
 408                         $sSQL .= "get_name_by_language(name, $sLanguagePrefArraySQL) as placename,";
 409                         $sSQL .= "get_name_by_language(name, ARRAY['ref']) as ref,";
 410                         if ($this->bIncludeExtraTags) $sSQL .= "hstore_to_json(extratags)::text as extra,";
 411                         if ($this->bIncludeNameDetails) $sSQL .= "hstore_to_json(name)::text as names,";
 412                         $sSQL .= "avg(ST_X(centroid)) as lon,avg(ST_Y(centroid)) as lat, ";
 413                         $sSQL .= $sImportanceSQL."coalesce(importance,0.75-(rank_search::float/40)) as importance, ";
 414                         $sSQL .= "(select max(p.importance*(p.rank_address+2)) from place_addressline s, placex p where s.place_id = min(CASE WHEN placex.rank_search < 28 THEN placex.place_id ELSE placex.parent_place_id END) and p.place_id = s.address_place_id and s.isaddress and p.importance is not null) as addressimportance, ";
 415                         $sSQL .= "(extratags->'place') as extra_place ";
 416                         $sSQL .= "from placex where place_id in ($sPlaceIDs) ";
 417                         $sSQL .= "and (placex.rank_address between $this->iMinAddressRank and $this->iMaxAddressRank ";
 418                         if (14 >= $this->iMinAddressRank && 14 <= $this->iMaxAddressRank) $sSQL .= " OR (extratags->'place') = 'city'";
 419                         if ($this->aAddressRankList) $sSQL .= " OR placex.rank_address in (".join(',',$this->aAddressRankList).")";
 420                         $sSQL .= ") ";
 421                         if ($this->sAllowedTypesSQLList) $sSQL .= "and placex.class in $this->sAllowedTypesSQLList ";
 422                         $sSQL .= "and linked_place_id is null ";
 423                         $sSQL .= "group by osm_type,osm_id,class,type,admin_level,rank_search,rank_address,calculated_country_code,importance";
 424                         if (!$this->bDeDupe) $sSQL .= ",place_id";
 425                         $sSQL .= ",langaddress ";
 426                         $sSQL .= ",placename ";
 427                         $sSQL .= ",ref ";
 428                         if ($this->bIncludeExtraTags) $sSQL .= ",extratags";
 429                         if ($this->bIncludeNameDetails) $sSQL .= ",name";
 430                         $sSQL .= ",extratags->'place' ";
 431
 432                         if (30 >= $this->iMinAddressRank && 30 <= $this->iMaxAddressRank)
 433                         {
 434                                 //only Tiger housenumbers and interpolation lines need to be interpolated, because they are saved as lines
 435                                 // with start- and endnumber, the common osm housenumbers are usually saved as points
 436                                 $sHousenumbers = "";
 437                                 $i = 0;
 438                                 $length = count($aPlaceIDs);
 439                                 foreach($aPlaceIDs as $placeID => $housenumber)
 440                                 {
 441                                         $i++;
 442                                         $sHousenumbers .= "(".$placeID.", ".$housenumber.")";
 443                                         if($i<$length)
 444                                                 $sHousenumbers .= ", ";
 445                                 }
 446                                 if (CONST_Use_US_Tiger_Data)
 447                                 {
 448                                         //Tiger search only if a housenumber was searched and if it was found (i.e. aPlaceIDs[placeID] = housenumber != -1) (realized through a join)
 449                                         $sSQL .= " union";
 450                                         $sSQL .= " select 'T' as osm_type, place_id as osm_id, 'place' as class, 'house' as type, null as admin_level, 30 as rank_search, 30 as rank_address, min(place_id) as place_id, min(parent_place_id) as parent_place_id, 'us' as country_code";
 451                                         $sSQL .= ", get_address_by_language(place_id, housenumber_for_place, $sLanguagePrefArraySQL) as langaddress ";
 452                                         $sSQL .= ", null as placename";
 453                                         $sSQL .= ", null as ref";
 454                                         if ($this->bIncludeExtraTags) $sSQL .= ", null as extra";
 455                                         if ($this->bIncludeNameDetails) $sSQL .= ", null as names";
 456                                         $sSQL .= ", avg(st_x(centroid)) as lon, avg(st_y(centroid)) as lat,";
 457                                         $sSQL .= $sImportanceSQL."-1.15 as importance ";
 458                                         $sSQL .= ", (select max(p.importance*(p.rank_address+2)) from place_addressline s, placex p where s.place_id = min(blub.parent_place_id) and p.place_id = s.address_place_id and s.isaddress and p.importance is not null) as addressimportance ";
 459                                         $sSQL .= ", null as extra_place ";
 460                                         $sSQL .= " from (select place_id";
 461                                         //interpolate the Tiger housenumbers here
 462                                         $sSQL .= ", ST_LineInterpolatePoint(linegeo, (housenumber_for_place-startnumber::float)/(endnumber-startnumber)::float) as centroid, parent_place_id, housenumber_for_place";
 463                                         $sSQL .= " from (location_property_tiger ";
 464                                         $sSQL .= " join (values ".$sHousenumbers.") as housenumbers(place_id, housenumber_for_place) using(place_id)) ";
 465                                         $sSQL .= " where housenumber_for_place>=0 and 30 between $this->iMinAddressRank and $this->iMaxAddressRank) as blub"; //postgres wants an alias here
 466                                         $sSQL .= " group by place_id, housenumber_for_place"; //is this group by really needed?, place_id + housenumber (in combination) are unique
 467                                         if (!$this->bDeDupe) $sSQL .= ", place_id ";
 468                                 }
 469                                 // osmline, osm_type is 'I' for Interpolation Line
 470                                 // interpolation line search only if a housenumber was searched and if it was found (i.e. aPlaceIDs[placeID] = housenumber != -1) (realized through a join)
 471                                 $sSQL .= " union ";
 472                                 $sSQL .= "select 'I' as osm_type, place_id as osm_id, 'place' as class, 'house' as type, null as admin_level, 30 as rank_search, 30 as rank_address, min(place_id) as place_id, min(parent_place_id) as parent_place_id, calculated_country_code as country_code, ";
 473                                 $sSQL .= "get_address_by_language(place_id, housenumber_for_place, $sLanguagePrefArraySQL) as langaddress, ";
 474                                 $sSQL .= "null as placename, ";
 475                                 $sSQL .= "null as ref, ";
 476                                 if ($this->bIncludeExtraTags) $sSQL .= "null as extra, ";
 477                                 if ($this->bIncludeNameDetails) $sSQL .= "null as names, ";
 478                                 $sSQL .= " avg(st_x(centroid)) as lon, avg(st_y(centroid)) as lat,";
 479                                 $sSQL .= $sImportanceSQL."-0.1 as importance, ";  // slightly smaller than the importance for normal houses with rank 30, which is 0
 480                                 $sSQL .= " (select max(p.importance*(p.rank_address+2)) from place_addressline s, placex p where s.place_id = min(blub.parent_place_id) and p.place_id = s.address_place_id and s.isaddress and p.importance is not null) as addressimportance, ";
 481                                 $sSQL .= " null as extra_place ";
 482                                 $sSQL .= " from (select place_id, calculated_country_code ";
 483                                 //interpolate the housenumbers here
 484                                 $sSQL .= ", CASE WHEN startnumber != endnumber THEN ST_LineInterpolatePoint(linegeo, (housenumber_for_place-startnumber::float)/(endnumber-startnumber)::float) ";
 485                                 $sSQL .= " ELSE ST_LineInterpolatePoint(linegeo, 0.5) END as centroid";
 486                                 $sSQL .= ", parent_place_id, housenumber_for_place ";
 487                                 $sSQL .= " from (location_property_osmline ";
 488                                 $sSQL .= " join (values ".$sHousenumbers.") as housenumbers(place_id, housenumber_for_place) using(place_id)) ";
 489                                 $sSQL .= " where housenumber_for_place>=0 and 30 between $this->iMinAddressRank and $this->iMaxAddressRank) as blub"; //postgres wants an alias here
 490                                 $sSQL .= " group by place_id, housenumber_for_place, calculated_country_code "; //is this group by really needed?, place_id + housenumber (in combination) are unique
 491                                 if (!$this->bDeDupe) $sSQL .= ", place_id ";
 492
 493                                 if (CONST_Use_Aux_Location_data)
 494                                 {
 495                                         $sSQL .= " union ";
 496                                         $sSQL .= "select 'L' as osm_type, place_id as osm_id, 'place' as class, 'house' as type, null as admin_level, 0 as rank_search, 0 as rank_address, min(place_id) as place_id, min(parent_place_id) as parent_place_id, 'us' as country_code, ";
 497                                         $sSQL .= "get_address_by_language(place_id, -1, $sLanguagePrefArraySQL) as langaddress, ";
 498                                         $sSQL .= "null as placename, ";
 499                                         $sSQL .= "null as ref, ";
 500                                         if ($this->bIncludeExtraTags) $sSQL .= "null as extra, ";
 501                                         if ($this->bIncludeNameDetails) $sSQL .= "null as names, ";
 502                                         $sSQL .= "avg(ST_X(centroid)) as lon, avg(ST_Y(centroid)) as lat, ";
 503                                         $sSQL .= $sImportanceSQL."-1.10 as importance, ";
 504                                         $sSQL .= "(select max(p.importance*(p.rank_address+2)) from place_addressline s, placex p where s.place_id = min(location_property_aux.parent_place_id) and p.place_id = s.address_place_id and s.isaddress and p.importance is not null) as addressimportance, ";
 505                                         $sSQL .= "null as extra_place ";
 506                                         $sSQL .= "from location_property_aux where place_id in ($sPlaceIDs) ";
 507                                         $sSQL .= "and 30 between $this->iMinAddressRank and $this->iMaxAddressRank ";
 508                                         $sSQL .= "group by place_id";
 509                                         if (!$this->bDeDupe) $sSQL .= ", place_id";
 510                                         $sSQL .= ", get_address_by_language(place_id, -1, $sLanguagePrefArraySQL) ";
 511                                 }
 512                         }
 513
 514                         $sSQL .= " order by importance desc";
 515                         if (CONST_Debug) { echo "<hr>"; var_dump($sSQL); }
 516                         $aSearchResults = $this->oDB->getAll($sSQL);
 517
 518                         if (PEAR::IsError($aSearchResults))
 519                         {
 520                                 failInternalError("Could not get details for place.", $sSQL, $aSearchResults);
 521                         }
 522
 523                         return $aSearchResults;
 524                 }
 525
 526                 function getGroupedSearches($aSearches, $aPhraseTypes, $aPhrases, $aValidTokens, $aWordFrequencyScores, $bStructuredPhrases)
 527                 {
 528                         /*
 529                                  Calculate all searches using aValidTokens i.e.
 530                                  'Wodsworth Road, Sheffield' =>
 531
 532                                  Phrase Wordset
 533                                  0      0       (wodsworth road)
 534                                  0      1       (wodsworth)(road)
 535                                  1      0       (sheffield)
 536
 537                                  Score how good the search is so they can be ordered
 538                          */
 539                         foreach($aPhrases as $iPhrase => $sPhrase)
 540                         {
 541                                 $aNewPhraseSearches = array();
 542                                 if ($bStructuredPhrases) $sPhraseType = $aPhraseTypes[$iPhrase];
 543                                 else $sPhraseType = '';
 544
 545                                 foreach($aPhrases[$iPhrase]['wordsets'] as $iWordSet => $aWordset)
 546                                 {
 547                                         // Too many permutations - too expensive
 548                                         if ($iWordSet > 120) break;
 549
 550                                         $aWordsetSearches = $aSearches;
 551
 552                                         // Add all words from this wordset
 553                                         foreach($aWordset as $iToken => $sToken)
 554                                         {
 555                                                 //echo "<br><b>$sToken</b>";
 556                                                 $aNewWordsetSearches = array();
 557
 558                                                 foreach($aWordsetSearches as $aCurrentSearch)
 559                                                 {
 560                                                         //echo "<i>";
 561                                                         //var_dump($aCurrentSearch);
 562                                                         //echo "</i>";
 563
 564                                                         // If the token is valid
 565                                                         if (isset($aValidTokens[' '.$sToken]))
 566                                                         {
 567                                                                 foreach($aValidTokens[' '.$sToken] as $aSearchTerm)
 568                                                                 {
 569                                                                         $aSearch = $aCurrentSearch;
 570                                                                         $aSearch['iSearchRank']++;
 571                                                                         if (($sPhraseType == '' || $sPhraseType == 'country') && !empty($aSearchTerm['country_code']) && $aSearchTerm['country_code'] != '0')
 572                                                                         {
 573                                                                                 if ($aSearch['sCountryCode'] === false)
 574                                                                                 {
 575                                                                                         $aSearch['sCountryCode'] = strtolower($aSearchTerm['country_code']);
 576                                                                                         // Country is almost always at the end of the string - increase score for finding it anywhere else (optimisation)
 577                                                                                         if (($iToken+1 != sizeof($aWordset) || $iPhrase+1 != sizeof($aPhrases)))
 578                                                                                         {
 579                                                                                                 $aSearch['iSearchRank'] += 5;
 580                                                                                         }
 581                                                                                         if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 582                                                                                 }
 583                                                                         }
 584                                                                         elseif (isset($aSearchTerm['lat']) && $aSearchTerm['lat'] !== '' && $aSearchTerm['lat'] !== null)
 585                                                                         {
 586                                                                                 if ($aSearch['fLat'] === '')
 587                                                                                 {
 588                                                                                         $aSearch['fLat'] = $aSearchTerm['lat'];
 589                                                                                         $aSearch['fLon'] = $aSearchTerm['lon'];
 590                                                                                         $aSearch['fRadius'] = $aSearchTerm['radius'];
 591                                                                                         if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 592                                                                                 }
 593                                                                         }
 594                                                                         elseif ($sPhraseType == 'postalcode')
 595                                                                         {
 596                                                                                 // We need to try the case where the postal code is the primary element (i.e. no way to tell if it is (postalcode, city) OR (city, postalcode) so try both
 597                                                                                 if (isset($aSearchTerm['word_id']) && $aSearchTerm['word_id'])
 598                                                                                 {
 599                                                                                         // If we already have a name try putting the postcode first
 600                                                                                         if (sizeof($aSearch['aName']))
 601                                                                                         {
 602                                                                                                 $aNewSearch = $aSearch;
 603                                                                                                 $aNewSearch['aAddress'] = array_merge($aNewSearch['aAddress'], $aNewSearch['aName']);
 604                                                                                                 $aNewSearch['aName'] = array();
 605                                                                                                 $aNewSearch['aName'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 606                                                                                                 if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aNewSearch;
 607                                                                                         }
 608
 609                                                                                         if (sizeof($aSearch['aName']))
 610                                                                                         {
 611                                                                                                 if ((!$bStructuredPhrases || $iPhrase > 0) && $sPhraseType != 'country' && (!isset($aValidTokens[$sToken]) || strpos($sToken, ' ') !== false))
 612                                                                                                 {
 613                                                                                                         $aSearch['aAddress'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 614                                                                                                 }
 615                                                                                                 else
 616                                                                                                 {
 617                                                                                                         $aCurrentSearch['aFullNameAddress'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 618                                                                                                         $aSearch['iSearchRank'] += 1000; // skip;
 619                                                                                                 }
 620                                                                                         }
 621                                                                                         else
 622                                                                                         {
 623                                                                                                 $aSearch['aName'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 624                                                                                                 //$aSearch['iNamePhrase'] = $iPhrase;
 625                                                                                         }
 626                                                                                         if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 627                                                                                 }
 628
 629                                                                         }
 630                                                                         elseif (($sPhraseType == '' || $sPhraseType == 'street') && $aSearchTerm['class'] == 'place' && $aSearchTerm['type'] == 'house')
 631                                                                         {
 632                                                                                 if ($aSearch['sHouseNumber'] === '')
 633                                                                                 {
 634                                                                                         $aSearch['sHouseNumber'] = $sToken;
 635                                                                                         // sanity check: if the housenumber is not mainly made
 636                                                                                         // up of numbers, add a penalty
 637                                                                                         if (preg_match_all("/[^0-9]/", $sToken, $aMatches) > 2) $aSearch['iSearchRank']++;
 638                                                                                         // also housenumbers should appear in the first or second phrase
 639                                                                                         if ($iPhrase > 1) $aSearch['iSearchRank'] += 1;
 640                                                                                         if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 641                                                                                         /*
 642                                                                                         // Fall back to not searching for this item (better than nothing)
 643                                                                                         $aSearch = $aCurrentSearch;
 644                                                                                         $aSearch['iSearchRank'] += 1;
 645                                                                                         if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 646                                                                                          */
 647                                                                                 }
 648                                                                         }
 649                                                                         elseif ($sPhraseType == '' && $aSearchTerm['class'] !== '' && $aSearchTerm['class'] !== null)
 650                                                                         {
 651                                                                                 if ($aSearch['sClass'] === '')
 652                                                                                 {
 653                                                                                         $aSearch['sOperator'] = $aSearchTerm['operator'];
 654                                                                                         $aSearch['sClass'] = $aSearchTerm['class'];
 655                                                                                         $aSearch['sType'] = $aSearchTerm['type'];
 656                                                                                         if (sizeof($aSearch['aName'])) $aSearch['sOperator'] = 'name';
 657                                                                                         else $aSearch['sOperator'] = 'near'; // near = in for the moment
 658                                                                                         if (strlen($aSearchTerm['operator']) == 0) $aSearch['iSearchRank'] += 1;
 659
 660                                                                                         if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 661                                                                                 }
 662                                                                         }
 663                                                                         elseif (isset($aSearchTerm['word_id']) && $aSearchTerm['word_id'])
 664                                                                         {
 665                                                                                 if (sizeof($aSearch['aName']))
 666                                                                                 {
 667                                                                                         if ((!$bStructuredPhrases || $iPhrase > 0) && $sPhraseType != 'country' && (!isset($aValidTokens[$sToken]) || strpos($sToken, ' ') !== false))
 668                                                                                         {
 669                                                                                                 $aSearch['aAddress'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 670                                                                                         }
 671                                                                                         else
 672                                                                                         {
 673                                                                                                 $aCurrentSearch['aFullNameAddress'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 674                                                                                                 $aSearch['iSearchRank'] += 1000; // skip;
 675                                                                                         }
 676                                                                                 }
 677                                                                                 else
 678                                                                                 {
 679                                                                                         $aSearch['aName'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 680                                                                                         //$aSearch['iNamePhrase'] = $iPhrase;
 681                                                                                 }
 682                                                                                 if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 683                                                                         }
 684                                                                 }
 685                                                         }
 686                                                         // Look for partial matches.
 687                                                         // Note that there is no point in adding country terms here
 688                                                         // because country are omitted in the address.
 689                                                         if (isset($aValidTokens[$sToken]) && $sPhraseType != 'country')
 690                                                         {
 691                                                                 // Allow searching for a word - but at extra cost
 692                                                                 foreach($aValidTokens[$sToken] as $aSearchTerm)
 693                                                                 {
 694                                                                         if (isset($aSearchTerm['word_id']) && $aSearchTerm['word_id'])
 695                                                                         {
 696                                                                                 if ((!$bStructuredPhrases || $iPhrase > 0) && sizeof($aCurrentSearch['aName']) && strpos($sToken, ' ') === false)
 697                                                                                 {
 698                                                                                         $aSearch = $aCurrentSearch;
 699                                                                                         $aSearch['iSearchRank'] += 1;
 700                                                                                         if ($aWordFrequencyScores[$aSearchTerm['word_id']] < CONST_Max_Word_Frequency)
 701                                                                                         {
 702                                                                                                 $aSearch['aAddress'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 703                                                                                                 if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 704                                                                                         }
 705                                                                                         elseif (isset($aValidTokens[' '.$sToken])) // revert to the token version?
 706                                                                                         {
 707                                                                                                 $aSearch['aAddressNonSearch'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 708                                                                                                 $aSearch['iSearchRank'] += 1;
 709                                                                                                 if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 710                                                                                                 foreach($aValidTokens[' '.$sToken] as $aSearchTermToken)
 711                                                                                                 {
 712                                                                                                         if (empty($aSearchTermToken['country_code'])
 713                                                                                                                         && empty($aSearchTermToken['lat'])
 714                                                                                                                         && empty($aSearchTermToken['class']))
 715                                                                                                         {
 716                                                                                                                 $aSearch = $aCurrentSearch;
 717                                                                                                                 $aSearch['iSearchRank'] += 1;
 718                                                                                                                 $aSearch['aAddress'][$aSearchTermToken['word_id']] = $aSearchTermToken['word_id'];
 719                                                                                                                 if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 720                                                                                                         }
 721                                                                                                 }
 722                                                                                         }
 723                                                                                         else
 724                                                                                         {
 725                                                                                                 $aSearch['aAddressNonSearch'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 726                                                                                                 if (preg_match('#^[0-9]+$#', $sToken)) $aSearch['iSearchRank'] += 2;
 727                                                                                                 if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 728                                                                                         }
 729                                                                                 }
 730
 731                                                                                 if (!sizeof($aCurrentSearch['aName']) || $aCurrentSearch['iNamePhrase'] == $iPhrase)
 732                                                                                 {
 733                                                                                         $aSearch = $aCurrentSearch;
 734                                                                                         $aSearch['iSearchRank'] += 1;
 735                                                                                         if (!sizeof($aCurrentSearch['aName'])) $aSearch['iSearchRank'] += 1;
 736                                                                                         if (preg_match('#^[0-9]+$#', $sToken)) $aSearch['iSearchRank'] += 2;
 737                                                                                         if ($aWordFrequencyScores[$aSearchTerm['word_id']] < CONST_Max_Word_Frequency)
 738                                                                                                 $aSearch['aName'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 739                                                                                         else
 740                                                                                                 $aSearch['aNameNonSearch'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 741                                                                                         $aSearch['iNamePhrase'] = $iPhrase;
 742                                                                                         if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 743                                                                                 }
 744                                                                         }
 745                                                                 }
 746                                                         }
 747                                                         else
 748                                                         {
 749                                                                 // Allow skipping a word - but at EXTREAM cost
 750                                                                 //$aSearch = $aCurrentSearch;
 751                                                                 //$aSearch['iSearchRank']+=100;
 752                                                                 //$aNewWordsetSearches[] = $aSearch;
 753                                                         }
 754                                                 }
 755                                                 // Sort and cut
 756                                                 usort($aNewWordsetSearches, 'bySearchRank');
 757                                                 $aWordsetSearches = array_slice($aNewWordsetSearches, 0, 50);
 758                                         }
 759                                         //var_Dump('<hr>',sizeof($aWordsetSearches)); exit;
 760
 761                                         $aNewPhraseSearches = array_merge($aNewPhraseSearches, $aNewWordsetSearches);
 762                                         usort($aNewPhraseSearches, 'bySearchRank');
 763
 764                                         $aSearchHash = array();
 765                                         foreach($aNewPhraseSearches as $iSearch => $aSearch)
 766                                         {
 767                                                 $sHash = serialize($aSearch);
 768                                                 if (isset($aSearchHash[$sHash])) unset($aNewPhraseSearches[$iSearch]);
 769                                                 else $aSearchHash[$sHash] = 1;
 770                                         }
 771
 772                                         $aNewPhraseSearches = array_slice($aNewPhraseSearches, 0, 50);
 773                                 }
 774
 775                                 // Re-group the searches by their score, junk anything over 20 as just not worth trying
 776                                 $aGroupedSearches = array();
 777                                 foreach($aNewPhraseSearches as $aSearch)
 778                                 {
 779                                         if ($aSearch['iSearchRank'] < $this->iMaxRank)
 780                                         {
 781                                                 if (!isset($aGroupedSearches[$aSearch['iSearchRank']])) $aGroupedSearches[$aSearch['iSearchRank']] = array();
 782                                                 $aGroupedSearches[$aSearch['iSearchRank']][] = $aSearch;
 783                                         }
 784                                 }
 785                                 ksort($aGroupedSearches);
 786
 787                                 $iSearchCount = 0;
 788                                 $aSearches = array();
 789                                 foreach($aGroupedSearches as $iScore => $aNewSearches)
 790                                 {
 791                                         $iSearchCount += sizeof($aNewSearches);
 792                                         $aSearches = array_merge($aSearches, $aNewSearches);
 793                                         if ($iSearchCount > 50) break;
 794                                 }
 795
 796                                 //if (CONST_Debug) _debugDumpGroupedSearches($aGroupedSearches, $aValidTokens);
 797
 798                         }
 799                         return $aGroupedSearches;
 800
 801                 }
 802
 803                 /* Perform the actual query lookup.
 804
 805                         Returns an ordered list of results, each with the following fields:
 806                                 osm_type: type of corresponding OSM object
 807                                                         N - node
 808                                                         W - way
 809                                                         R - relation
 810                                                         P - postcode (internally computed)
 811                                 osm_id: id of corresponding OSM object
 812                                 class: general object class (corresponds to tag key of primary OSM tag)
 813                                 type: subclass of object (corresponds to tag value of primary OSM tag)
 814                                 admin_level: see http://wiki.openstreetmap.org/wiki/Admin_level
 815                                 rank_search: rank in search hierarchy
 816                                                         (see also http://wiki.openstreetmap.org/wiki/Nominatim/Development_overview#Country_to_street_level)
 817                                 rank_address: rank in address hierarchy (determines orer in address)
 818                                 place_id: internal key (may differ between different instances)
 819                                 country_code: ISO country code
 820                                 langaddress: localized full address
 821                                 placename: localized name of object
 822                                 ref: content of ref tag (if available)
 823                                 lon: longitude
 824                                 lat: latitude
 825                                 importance: importance of place based on Wikipedia link count
 826                                 addressimportance: cumulated importance of address elements
 827                                 extra_place: type of place (for admin boundaries, if there is a place tag)
 828                                 aBoundingBox: bounding Box
 829                                 label: short description of the object class/type (English only)
 830                                 name: full name (currently the same as langaddress)
 831                                 foundorder: secondary ordering for places with same importance
 832                 */
 833                 function lookup()
 834                 {
 835                         if (!$this->sQuery && !$this->aStructuredQuery) return false;
 836
 837                         $sLanguagePrefArraySQL = "ARRAY[".join(',',array_map("getDBQuoted",$this->aLangPrefOrder))."]";
 838                         $sCountryCodesSQL = false;
 839                         if ($this->aCountryCodes && sizeof($this->aCountryCodes))
 840                         {
 841                                 $sCountryCodesSQL = join(',', array_map('addQuotes', $this->aCountryCodes));
 842                         }
 843
 844                         $sQuery = $this->sQuery;
 845
 846                         // Conflicts between US state abreviations and various words for 'the' in different languages
 847                         if (isset($this->aLangPrefOrder['name:en']))
 848                         {
 849                                 $sQuery = preg_replace('/(^|,)\s*il\s*(,|$)/','\1illinois\2', $sQuery);
 850                                 $sQuery = preg_replace('/(^|,)\s*al\s*(,|$)/','\1alabama\2', $sQuery);
 851                                 $sQuery = preg_replace('/(^|,)\s*la\s*(,|$)/','\1louisiana\2', $sQuery);
 852                         }
 853
 854                         // View Box SQL
 855                         $sViewboxCentreSQL = false;
 856                         $bBoundingBoxSearch = false;
 857                         if ($this->aViewBox)
 858                         {
 859                                 $fHeight = $this->aViewBox[0]-$this->aViewBox[2];
 860                                 $fWidth = $this->aViewBox[1]-$this->aViewBox[3];
 861                                 $aBigViewBox[0] = $this->aViewBox[0] + $fHeight;
 862                                 $aBigViewBox[2] = $this->aViewBox[2] - $fHeight;
 863                                 $aBigViewBox[1] = $this->aViewBox[1] + $fWidth;
 864                                 $aBigViewBox[3] = $this->aViewBox[3] - $fWidth;
 865
 866                                 $this->sViewboxSmallSQL = "ST_SetSRID(ST_MakeBox2D(ST_Point(".(float)$this->aViewBox[0].",".(float)$this->aViewBox[1]."),ST_Point(".(float)$this->aViewBox[2].",".(float)$this->aViewBox[3].")),4326)";
 867                                 $this->sViewboxLargeSQL = "ST_SetSRID(ST_MakeBox2D(ST_Point(".(float)$aBigViewBox[0].",".(float)$aBigViewBox[1]."),ST_Point(".(float)$aBigViewBox[2].",".(float)$aBigViewBox[3].")),4326)";
 868                                 $bBoundingBoxSearch = $this->bBoundedSearch;
 869                         }
 870
 871                         // Route SQL
 872                         if ($this->aRoutePoints)
 873                         {
 874                                 $sViewboxCentreSQL = "ST_SetSRID('LINESTRING(";
 875                                 $bFirst = true;
 876                                 foreach($this->aRoutePoints as $aPoint)
 877                                 {
 878                                         if (!$bFirst) $sViewboxCentreSQL .= ",";
 879                                         $sViewboxCentreSQL .= $aPoint[0].' '.$aPoint[1];
 880                                         $bFirst = false;
 881                                 }
 882                                 $sViewboxCentreSQL .= ")'::geometry,4326)";
 883
 884                                 $sSQL = "select st_buffer(".$sViewboxCentreSQL.",".(float)($_GET['routewidth']/69).")";
 885                                 $this->sViewboxSmallSQL = $this->oDB->getOne($sSQL);
 886                                 if (PEAR::isError($this->sViewboxSmallSQL))
 887                                 {
 888                                         failInternalError("Could not get small viewbox.", $sSQL, $this->sViewboxSmallSQL);
 889                                 }
 890                                 $this->sViewboxSmallSQL = "'".$this->sViewboxSmallSQL."'::geometry";
 891
 892                                 $sSQL = "select st_buffer(".$sViewboxCentreSQL.",".(float)($_GET['routewidth']/30).")";
 893                                 $this->sViewboxLargeSQL = $this->oDB->getOne($sSQL);
 894                                 if (PEAR::isError($this->sViewboxLargeSQL))
 895                                 {
 896                                         failInternalError("Could not get large viewbox.", $sSQL, $this->sViewboxLargeSQL);
 897                                 }
 898                                 $this->sViewboxLargeSQL = "'".$this->sViewboxLargeSQL."'::geometry";
 899                                 $bBoundingBoxSearch = $this->bBoundedSearch;
 900                         }
 901
 902                         // Do we have anything that looks like a lat/lon pair?
 903                         if ( $aLooksLike = looksLikeLatLonPair($sQuery) )
 904                         {
 905                                 $this->setNearPoint(array($aLooksLike['lat'], $aLooksLike['lon']));
 906                                 $sQuery = $aLooksLike['query'];
 907                         }
 908
 909                         $aSearchResults = array();
 910                         if ($sQuery || $this->aStructuredQuery)
 911                         {
 912                                 // Start with a blank search
 913                                 $aSearches = array(
 914                                         array('iSearchRank' => 0,
 915                                                                 'iNamePhrase' => -1,
 916                                                                 'sCountryCode' => false,
 917                                                                 'aName' => array(),
 918                                                                 'aAddress' => array(),
 919                                                                 'aFullNameAddress' => array(),
 920                                                                 'aNameNonSearch' => array(),
 921                                                                 'aAddressNonSearch' => array(),
 922                                                                 'sOperator' => '',
 923                                                                 'aFeatureName' => array(),
 924                                                                 'sClass' => '',
 925                                                                 'sType' => '',
 926                                                                 'sHouseNumber' => '',
 927                                                                 'fLat' => '',
 928                                                                 'fLon' => '',
 929                                                                 'fRadius' => ''
 930                                                         )
 931                                 );
 932
 933                                 // Do we have a radius search?
 934                                 $sNearPointSQL = false;
 935                                 if ($this->aNearPoint)
 936                                 {
 937                                         $sNearPointSQL = "ST_SetSRID(ST_Point(".(float)$this->aNearPoint[1].",".(float)$this->aNearPoint[0]."),4326)";
 938                                         $aSearches[0]['fLat'] = (float)$this->aNearPoint[0];
 939                                         $aSearches[0]['fLon'] = (float)$this->aNearPoint[1];
 940                                         $aSearches[0]['fRadius'] = (float)$this->aNearPoint[2];
 941                                 }
 942
 943                                 // Any 'special' terms in the search?
 944                                 $bSpecialTerms = false;
 945                                 preg_match_all('/\\[(.*)=(.*)\\]/', $sQuery, $aSpecialTermsRaw, PREG_SET_ORDER);
 946                                 $aSpecialTerms = array();
 947                                 foreach($aSpecialTermsRaw as $aSpecialTerm)
 948                                 {
 949                                         $sQuery = str_replace($aSpecialTerm[0], ' ', $sQuery);
 950                                         $aSpecialTerms[strtolower($aSpecialTerm[1])] = $aSpecialTerm[2];
 951                                 }
 952
 953                                 preg_match_all('/\\[([\\w ]*)\\]/u', $sQuery, $aSpecialTermsRaw, PREG_SET_ORDER);
 954                                 $aSpecialTerms = array();
 955                                 if (isset($this->aStructuredQuery['amenity']) && $this->aStructuredQuery['amenity'])
 956                                 {
 957                                         $aSpecialTermsRaw[] = array('['.$this->aStructuredQuery['amenity'].']', $this->aStructuredQuery['amenity']);
 958                                         unset($this->aStructuredQuery['amenity']);
 959                                 }
 960                                 foreach($aSpecialTermsRaw as $aSpecialTerm)
 961                                 {
 962                                         $sQuery = str_replace($aSpecialTerm[0], ' ', $sQuery);
 963                                         $sToken = $this->oDB->getOne("select make_standard_name('".$aSpecialTerm[1]."') as string");
 964                                         $sSQL = 'select * from (select word_id,word_token, word, class, type, country_code, operator';
 965                                         $sSQL .= ' from word where word_token in (\' '.$sToken.'\')) as x where (class is not null and class not in (\'place\')) or country_code is not null';
 966                                         if (CONST_Debug) var_Dump($sSQL);
 967                                         $aSearchWords = $this->oDB->getAll($sSQL);
 968                                         $aNewSearches = array();
 969                                         foreach($aSearches as $aSearch)
 970                                         {
 971                                                 foreach($aSearchWords as $aSearchTerm)
 972                                                 {
 973                                                         $aNewSearch = $aSearch;
 974                                                         if ($aSearchTerm['country_code'])
 975                                                         {
 976                                                                 $aNewSearch['sCountryCode'] = strtolower($aSearchTerm['country_code']);
 977                                                                 $aNewSearches[] = $aNewSearch;
 978                                                                 $bSpecialTerms = true;
 979                                                         }
 980                                                         if ($aSearchTerm['class'])
 981                                                         {
 982                                                                 $aNewSearch['sClass'] = $aSearchTerm['class'];
 983                                                                 $aNewSearch['sType'] = $aSearchTerm['type'];
 984                                                                 $aNewSearches[] = $aNewSearch;
 985                                                                 $bSpecialTerms = true;
 986                                                         }
 987                                                 }
 988                                         }
 989                                         $aSearches = $aNewSearches;
 990                                 }
 991
 992                                 // Split query into phrases
 993                                 // Commas are used to reduce the search space by indicating where phrases split
 994                                 if ($this->aStructuredQuery)
 995                                 {
 996                                         $aPhrases = $this->aStructuredQuery;
 997                                         $bStructuredPhrases = true;
 998                                 }
 999                                 else
1000                                 {
1001                                         $aPhrases = explode(',',$sQuery);
1002                                         $bStructuredPhrases = false;
1003                                 }
1004
1005                                 // Convert each phrase to standard form
1006                                 // Create a list of standard words
1007                                 // Get all 'sets' of words
1008                                 // Generate a complete list of all
1009                                 $aTokens = array();
1010                                 foreach($aPhrases as $iPhrase => $sPhrase)
1011                                 {
1012                                         $aPhrase = $this->oDB->getRow("select make_standard_name('".pg_escape_string($sPhrase)."') as string");
1013                                         if (PEAR::isError($aPhrase))
1014                                         {
1015                                                 userError("Illegal query string (not an UTF-8 string): ".$sPhrase);
1016                                                 if (CONST_Debug) var_dump($aPhrase);
1017                                                 exit;
1018                                         }
1019                                         if (trim($aPhrase['string']))
1020                                         {
1021                                                 $aPhrases[$iPhrase] = $aPhrase;
1022                                                 $aPhrases[$iPhrase]['words'] = explode(' ',$aPhrases[$iPhrase]['string']);
1023                                                 $aPhrases[$iPhrase]['wordsets'] = getWordSets($aPhrases[$iPhrase]['words'], 0);
1024                                                 $aTokens = array_merge($aTokens, getTokensFromSets($aPhrases[$iPhrase]['wordsets']));
1025                                         }
1026                                         else
1027                                         {
1028                                                 unset($aPhrases[$iPhrase]);
1029                                         }
1030                                 }
1031
1032                                 // Reindex phrases - we make assumptions later on that they are numerically keyed in order
1033                                 $aPhraseTypes = array_keys($aPhrases);
1034                                 $aPhrases = array_values($aPhrases);
1035
1036                                 if (sizeof($aTokens))
1037                                 {
1038                                         // Check which tokens we have, get the ID numbers
1039                                         $sSQL = 'select word_id,word_token, word, class, type, country_code, operator, search_name_count';
1040                                         $sSQL .= ' from word where word_token in ('.join(',',array_map("getDBQuoted",$aTokens)).')';
1041
1042                                         if (CONST_Debug) var_Dump($sSQL);
1043
1044                                         $aValidTokens = array();
1045                                         if (sizeof($aTokens)) $aDatabaseWords = $this->oDB->getAll($sSQL);
1046                                         else $aDatabaseWords = array();
1047                                         if (PEAR::IsError($aDatabaseWords))
1048                                         {
1049                                                 failInternalError("Could not get word tokens.", $sSQL, $aDatabaseWords);
1050                                         }
1051                                         $aPossibleMainWordIDs = array();
1052                                         $aWordFrequencyScores = array();
1053                                         foreach($aDatabaseWords as $aToken)
1054                                         {
1055                                                 // Very special case - require 2 letter country param to match the country code found
1056                                                 if ($bStructuredPhrases && $aToken['country_code'] && !empty($this->aStructuredQuery['country'])
1057                                                                 && strlen($this->aStructuredQuery['country']) == 2 && strtolower($this->aStructuredQuery['country']) != $aToken['country_code'])
1058                                                 {
1059                                                         continue;
1060                                                 }
1061
1062                                                 if (isset($aValidTokens[$aToken['word_token']]))
1063                                                 {
1064                                                         $aValidTokens[$aToken['word_token']][] = $aToken;
1065                                                 }
1066                                                 else
1067                                                 {
1068                                                         $aValidTokens[$aToken['word_token']] = array($aToken);
1069                                                 }
1070                                                 if (!$aToken['class'] && !$aToken['country_code']) $aPossibleMainWordIDs[$aToken['word_id']] = 1;
1071                                                 $aWordFrequencyScores[$aToken['word_id']] = $aToken['search_name_count'] + 1;
1072                                         }
1073                                         if (CONST_Debug) var_Dump($aPhrases, $aValidTokens);
1074
1075                                         // Try and calculate GB postcodes we might be missing
1076                                         foreach($aTokens as $sToken)
1077                                         {
1078                                                 // Source of gb postcodes is now definitive - always use
1079                                                 if (preg_match('/^([A-Z][A-Z]?[0-9][0-9A-Z]? ?[0-9])([A-Z][A-Z])$/', strtoupper(trim($sToken)), $aData))
1080                                                 {
1081                                                         if (substr($aData[1],-2,1) != ' ')
1082                                                         {
1083                                                                 $aData[0] = substr($aData[0],0,strlen($aData[1])-1).' '.substr($aData[0],strlen($aData[1])-1);
1084                                                                 $aData[1] = substr($aData[1],0,-1).' '.substr($aData[1],-1,1);
1085                                                         }
1086                                                         $aGBPostcodeLocation = gbPostcodeCalculate($aData[0], $aData[1], $aData[2], $this->oDB);
1087                                                         if ($aGBPostcodeLocation)
1088                                                         {
1089                                                                 $aValidTokens[$sToken] = $aGBPostcodeLocation;
1090                                                         }
1091                                                 }
1092                                                 // US ZIP+4 codes - if there is no token,
1093                                                 //      merge in the 5-digit ZIP code
1094                                                 else if (!isset($aValidTokens[$sToken]) && preg_match('/^([0-9]{5}) [0-9]{4}$/', $sToken, $aData))
1095                                                 {
1096                                                         if (isset($aValidTokens[$aData[1]]))
1097                                                         {
1098                                                                 foreach($aValidTokens[$aData[1]] as $aToken)
1099                                                                 {
1100                                                                         if (!$aToken['class'])
1101                                                                         {
1102                                                                                 if (isset($aValidTokens[$sToken]))
1103                                                                                 {
1104                                                                                         $aValidTokens[$sToken][] = $aToken;
1105                                                                                 }
1106                                                                                 else
1107                                                                                 {
1108                                                                                         $aValidTokens[$sToken] = array($aToken);
1109                                                                                 }
1110                                                                         }
1111                                                                 }
1112                                                         }
1113                                                 }
1114                                         }
1115
1116                                         foreach($aTokens as $sToken)
1117                                         {
1118                                                 // Unknown single word token with a number - assume it is a house number
1119                                                 if (!isset($aValidTokens[' '.$sToken]) && strpos($sToken,' ') === false && preg_match('/[0-9]/', $sToken))
1120                                                 {
1121                                                         $aValidTokens[' '.$sToken] = array(array('class'=>'place','type'=>'house'));
1122                                                 }
1123                                         }
1124
1125                                         // Any words that have failed completely?
1126                                         // TODO: suggestions
1127
1128                                         // Start the search process
1129                                         // array with: placeid => -1 | tiger-housenumber
1130                                         $aResultPlaceIDs = array();
1131
1132                                         $aGroupedSearches = $this->getGroupedSearches($aSearches, $aPhraseTypes, $aPhrases, $aValidTokens, $aWordFrequencyScores, $bStructuredPhrases);
1133
1134                                         if ($this->bReverseInPlan)
1135                                         {
1136                                                 // Reverse phrase array and also reverse the order of the wordsets in
1137                                                 // the first and final phrase. Don't bother about phrases in the middle
1138                                                 // because order in the address doesn't matter.
1139                                                 $aPhrases = array_reverse($aPhrases);
1140                                                 $aPhrases[0]['wordsets'] = getInverseWordSets($aPhrases[0]['words'], 0);
1141                                                 if (sizeof($aPhrases) > 1)
1142                                                 {
1143                                                         $aFinalPhrase = end($aPhrases);
1144                                                         $aPhrases[sizeof($aPhrases)-1]['wordsets'] = getInverseWordSets($aFinalPhrase['words'], 0);
1145                                                 }
1146                                                 $aReverseGroupedSearches = $this->getGroupedSearches($aSearches, null, $aPhrases, $aValidTokens, $aWordFrequencyScores, false);
1147
1148                                                 foreach($aGroupedSearches as $aSearches)
1149                                                 {
1150                                                         foreach($aSearches as $aSearch)
1151                                                         {
1152                                                                 if ($aSearch['iSearchRank'] < $this->iMaxRank)
1153                                                                 {
1154                                                                         if (!isset($aReverseGroupedSearches[$aSearch['iSearchRank']])) $aReverseGroupedSearches[$aSearch['iSearchRank']] = array();
1155                                                                         $aReverseGroupedSearches[$aSearch['iSearchRank']][] = $aSearch;
1156                                                                 }
1157
1158                                                         }
1159                                                 }
1160
1161                                                 $aGroupedSearches = $aReverseGroupedSearches;
1162                                                 ksort($aGroupedSearches);
1163                                         }
1164                                 }
1165                                 else
1166                                 {
1167                                         // Re-group the searches by their score, junk anything over 20 as just not worth trying
1168                                         $aGroupedSearches = array();
1169                                         foreach($aSearches as $aSearch)
1170                                         {
1171                                                 if ($aSearch['iSearchRank'] < $this->iMaxRank)
1172                                                 {
1173                                                         if (!isset($aGroupedSearches[$aSearch['iSearchRank']])) $aGroupedSearches[$aSearch['iSearchRank']] = array();
1174                                                         $aGroupedSearches[$aSearch['iSearchRank']][] = $aSearch;
1175                                                 }
1176                                         }
1177                                         ksort($aGroupedSearches);
1178                                 }
1179
1180                                 if (CONST_Debug) var_Dump($aGroupedSearches);
1181
1182                                 if (CONST_Search_TryDroppedAddressTerms && sizeof($this->aStructuredQuery) > 0)
1183                                 {
1184                                         $aCopyGroupedSearches = $aGroupedSearches;
1185                                         foreach($aCopyGroupedSearches as $iGroup => $aSearches)
1186                                         {
1187                                                 foreach($aSearches as $iSearch => $aSearch)
1188                                                 {
1189                                                         $aReductionsList = array($aSearch['aAddress']);
1190                                                         $iSearchRank = $aSearch['iSearchRank'];
1191                                                         while(sizeof($aReductionsList) > 0)
1192                                                         {
1193                                                                 $iSearchRank += 5;
1194                                                                 if ($iSearchRank > iMaxRank) break 3;
1195                                                                 $aNewReductionsList = array();
1196                                                                 foreach($aReductionsList as $aReductionsWordList)
1197                                                                 {
1198                                                                         for ($iReductionWord = 0; $iReductionWord < sizeof($aReductionsWordList); $iReductionWord++)
1199                                                                         {
1200                                                                                 $aReductionsWordListResult = array_merge(array_slice($aReductionsWordList, 0, $iReductionWord), array_slice($aReductionsWordList, $iReductionWord+1));
1201                                                                                 $aReverseSearch = $aSearch;
1202                                                                                 $aSearch['aAddress'] = $aReductionsWordListResult;
1203                                                                                 $aSearch['iSearchRank'] = $iSearchRank;
1204                                                                                 $aGroupedSearches[$iSearchRank][] = $aReverseSearch;
1205                                                                                 if (sizeof($aReductionsWordListResult) > 0)
1206                                                                                 {
1207                                                                                         $aNewReductionsList[] = $aReductionsWordListResult;
1208                                                                                 }
1209                                                                         }
1210                                                                 }
1211                                                                 $aReductionsList = $aNewReductionsList;
1212                                                         }
1213                                                 }
1214                                         }
1215                                         ksort($aGroupedSearches);
1216                                 }
1217
1218                                 // Filter out duplicate searches
1219                                 $aSearchHash = array();
1220                                 foreach($aGroupedSearches as $iGroup => $aSearches)
1221                                 {
1222                                         foreach($aSearches as $iSearch => $aSearch)
1223                                         {
1224                                                 $sHash = serialize($aSearch);
1225                                                 if (isset($aSearchHash[$sHash]))
1226                                                 {
1227                                                         unset($aGroupedSearches[$iGroup][$iSearch]);
1228                                                         if (sizeof($aGroupedSearches[$iGroup]) == 0) unset($aGroupedSearches[$iGroup]);
1229                                                 }
1230                                                 else
1231                                                 {
1232                                                         $aSearchHash[$sHash] = 1;
1233                                                 }
1234                                         }
1235                                 }
1236
1237                                 if (CONST_Debug) _debugDumpGroupedSearches($aGroupedSearches, $aValidTokens);
1238
1239                                 $iGroupLoop = 0;
1240                                 $iQueryLoop = 0;
1241                                 foreach($aGroupedSearches as $iGroupedRank => $aSearches)
1242                                 {
1243                                         $iGroupLoop++;
1244                                         foreach($aSearches as $aSearch)
1245                                         {
1246                                                 $iQueryLoop++;
1247                                                 $searchedHousenumber = -1;
1248
1249                                                 if (CONST_Debug) { echo "<hr><b>Search Loop, group $iGroupLoop, loop $iQueryLoop</b>"; }
1250                                                 if (CONST_Debug) _debugDumpGroupedSearches(array($iGroupedRank => array($aSearch)), $aValidTokens);
1251
1252                                                 // No location term?
1253                                                 if (!sizeof($aSearch['aName']) && !sizeof($aSearch['aAddress']) && !$aSearch['fLon'])
1254                                                 {
1255                                                         if ($aSearch['sCountryCode'] && !$aSearch['sClass'] && !$aSearch['sHouseNumber'])
1256                                                         {
1257                                                                 // Just looking for a country by code - look it up
1258                                                                 if (4 >= $this->iMinAddressRank && 4 <= $this->iMaxAddressRank)
1259                                                                 {
1260                                                                         $sSQL = "select place_id from placex where calculated_country_code='".$aSearch['sCountryCode']."' and rank_search = 4";
1261                                                                         if ($sCountryCodesSQL) $sSQL .= " and calculated_country_code in ($sCountryCodesSQL)";
1262                                                                         if ($bBoundingBoxSearch)
1263                                                                                 $sSQL .= " and _st_intersects($this->sViewboxSmallSQL, geometry)";
1264                                                                         $sSQL .= " order by st_area(geometry) desc limit 1";
1265                                                                         if (CONST_Debug) var_dump($sSQL);
1266                                                                         $aPlaceIDs = $this->oDB->getCol($sSQL);
1267                                                                 }
1268                                                                 else
1269                                                                 {
1270                                                                         $aPlaceIDs = array();
1271                                                                 }
1272                                                         }
1273                                                         else
1274                                                         {
1275                                                                 if (!$bBoundingBoxSearch && !$aSearch['fLon']) continue;
1276                                                                 if (!$aSearch['sClass']) continue;
1277                                                                 $sSQL = "select count(*) from pg_tables where tablename = 'place_classtype_".$aSearch['sClass']."_".$aSearch['sType']."'";
1278                                                                 if ($this->oDB->getOne($sSQL))
1279                                                                 {
1280                                                                         $sSQL = "select place_id from place_classtype_".$aSearch['sClass']."_".$aSearch['sType']." ct";
1281                                                                         if ($sCountryCodesSQL) $sSQL .= " join placex using (place_id)";
1282                                                                         $sSQL .= " where st_contains($this->sViewboxSmallSQL, ct.centroid)";
1283                                                                         if ($sCountryCodesSQL) $sSQL .= " and calculated_country_code in ($sCountryCodesSQL)";
1284                                                                         if (sizeof($this->aExcludePlaceIDs))
1285                                                                         {
1286                                                                                 $sSQL .= " and place_id not in (".join(',',$this->aExcludePlaceIDs).")";
1287                                                                         }
1288                                                                         if ($sViewboxCentreSQL) $sSQL .= " order by st_distance($sViewboxCentreSQL, ct.centroid) asc";
1289                                                                         $sSQL .= " limit $this->iLimit";
1290                                                                         if (CONST_Debug) var_dump($sSQL);
1291                                                                         $aPlaceIDs = $this->oDB->getCol($sSQL);
1292
1293                                                                         // If excluded place IDs are given, it is fair to assume that
1294                                                                         // there have been results in the small box, so no further
1295                                                                         // expansion in that case.
1296                                                                         // Also don't expand if bounded results were requested.
1297                                                                         if (!sizeof($aPlaceIDs) && !sizeof($this->aExcludePlaceIDs) && !$this->bBoundedSearch)
1298                                                                         {
1299                                                                                 $sSQL = "select place_id from place_classtype_".$aSearch['sClass']."_".$aSearch['sType']." ct";
1300                                                                                 if ($sCountryCodesSQL) $sSQL .= " join placex using (place_id)";
1301                                                                                 $sSQL .= " where st_contains($this->sViewboxLargeSQL, ct.centroid)";
1302                                                                                 if ($sCountryCodesSQL) $sSQL .= " and calculated_country_code in ($sCountryCodesSQL)";
1303                                                                                 if ($sViewboxCentreSQL) $sSQL .= " order by st_distance($sViewboxCentreSQL, ct.centroid) asc";
1304                                                                                 $sSQL .= " limit $this->iLimit";
1305                                                                                 if (CONST_Debug) var_dump($sSQL);
1306                                                                                 $aPlaceIDs = $this->oDB->getCol($sSQL);
1307                                                                         }
1308                                                                 }
1309                                                                 else
1310                                                                 {
1311                                                                         $sSQL = "select place_id from placex where class='".$aSearch['sClass']."' and type='".$aSearch['sType']."'";
1312                                                                         $sSQL .= " and st_contains($this->sViewboxSmallSQL, geometry) and linked_place_id is null";
1313                                                                         if ($sCountryCodesSQL) $sSQL .= " and calculated_country_code in ($sCountryCodesSQL)";
1314                                                                         if ($sViewboxCentreSQL) $sSQL .= " order by st_distance($sViewboxCentreSQL, centroid) asc";
1315                                                                         $sSQL .= " limit $this->iLimit";
1316                                                                         if (CONST_Debug) var_dump($sSQL);
1317                                                                         $aPlaceIDs = $this->oDB->getCol($sSQL);
1318                                                                 }
1319                                                         }
1320                                                 }
1321                                                 else
1322                                                 {
1323                                                         $aPlaceIDs = array();
1324
1325                                                         // First we need a position, either aName or fLat or both
1326                                                         $aTerms = array();
1327                                                         $aOrder = array();
1328
1329                                                         if ($aSearch['sHouseNumber'] && sizeof($aSearch['aAddress']))
1330                                                         {
1331                                                                 $sHouseNumberRegex = '\\\\m'.$aSearch['sHouseNumber'].'\\\\M';
1332                                 $aOrder[] = "";
1333                                                                 $aOrder[0] = " exists(select place_id from placex where parent_place_id = search_name.place_id";
1334                                 $aOrder[0] .= " and transliteration(housenumber) ~* E'".$sHouseNumberRegex."' limit 1) ";
1335                                                                 // also housenumbers from interpolation lines table are needed
1336                                                                 $aOrder[0] .= " or exists(select place_id from location_property_osmline where parent_place_id = search_name.place_id";
1337                                 $aOrder[0] .= " and ".$aSearch['sHouseNumber'].">=startnumber and ".$aSearch['sHouseNumber']."<=endnumber limit 1)";
1338                                                                 $aOrder[0] .= " desc";
1339                                                         }
1340
1341                                                         // TODO: filter out the pointless search terms (2 letter name tokens and less)
1342                                                         // they might be right - but they are just too darned expensive to run
1343                                                         if (sizeof($aSearch['aName'])) $aTerms[] = "name_vector @> ARRAY[".join($aSearch['aName'],",")."]";
1344                                                         if (sizeof($aSearch['aNameNonSearch'])) $aTerms[] = "array_cat(name_vector,ARRAY[]::integer[]) @> ARRAY[".join($aSearch['aNameNonSearch'],",")."]";
1345                                                         if (sizeof($aSearch['aAddress']) && $aSearch['aName'] != $aSearch['aAddress'])
1346                                                         {
1347                                                                 // For infrequent name terms disable index usage for address
1348                                                                 if (CONST_Search_NameOnlySearchFrequencyThreshold &&
1349                                                                                 sizeof($aSearch['aName']) == 1 &&
1350                                                                                 $aWordFrequencyScores[$aSearch['aName'][reset($aSearch['aName'])]] < CONST_Search_NameOnlySearchFrequencyThreshold)
1351                                                                 {
1352                                                                         $aTerms[] = "array_cat(nameaddress_vector,ARRAY[]::integer[]) @> ARRAY[".join(array_merge($aSearch['aAddress'],$aSearch['aAddressNonSearch']),",")."]";
1353                                                                 }
1354                                                                 else
1355                                                                 {
1356                                                                         $aTerms[] = "nameaddress_vector @> ARRAY[".join($aSearch['aAddress'],",")."]";
1357                                                                         if (sizeof($aSearch['aAddressNonSearch'])) $aTerms[] = "array_cat(nameaddress_vector,ARRAY[]::integer[]) @> ARRAY[".join($aSearch['aAddressNonSearch'],",")."]";
1358                                                                 }
1359                                                         }
1360                                                         if ($aSearch['sCountryCode']) $aTerms[] = "country_code = '".pg_escape_string($aSearch['sCountryCode'])."'";
1361                                                         if ($aSearch['sHouseNumber'])
1362                                                         {
1363                                                                 $aTerms[] = "address_rank between 16 and 27";
1364                                                         }
1365                                                         else
1366                                                         {
1367                                                                 if ($this->iMinAddressRank > 0)
1368                                                                 {
1369                                                                         $aTerms[] = "address_rank >= ".$this->iMinAddressRank;
1370                                                                 }
1371                                                                 if ($this->iMaxAddressRank < 30)
1372                                                                 {
1373                                                                         $aTerms[] = "address_rank <= ".$this->iMaxAddressRank;
1374                                                                 }
1375                                                         }
1376                                                         if ($aSearch['fLon'] && $aSearch['fLat'])
1377                                                         {
1378                                                                 $aTerms[] = "ST_DWithin(centroid, ST_SetSRID(ST_Point(".$aSearch['fLon'].",".$aSearch['fLat']."),4326), ".$aSearch['fRadius'].")";
1379                                                                 $aOrder[] = "ST_Distance(centroid, ST_SetSRID(ST_Point(".$aSearch['fLon'].",".$aSearch['fLat']."),4326)) ASC";
1380                                                         }
1381                                                         if (sizeof($this->aExcludePlaceIDs))
1382                                                         {
1383                                                                 $aTerms[] = "place_id not in (".join(',',$this->aExcludePlaceIDs).")";
1384                                                         }
1385                                                         if ($sCountryCodesSQL)
1386                                                         {
1387                                                                 $aTerms[] = "country_code in ($sCountryCodesSQL)";
1388                                                         }
1389
1390                                                         if ($bBoundingBoxSearch) $aTerms[] = "centroid && $this->sViewboxSmallSQL";
1391                                                         if ($sNearPointSQL) $aOrder[] = "ST_Distance($sNearPointSQL, centroid) asc";
1392
1393                                                         if ($aSearch['sHouseNumber'])
1394                                                         {
1395                                                                 $sImportanceSQL = '- abs(26 - address_rank) + 3';
1396                                                         }
1397                                                         else
1398                                                         {
1399                                                                 $sImportanceSQL = '(case when importance = 0 OR importance IS NULL then 0.75-(search_rank::float/40) else importance end)';
1400                                                         }
1401                                                         if ($this->sViewboxSmallSQL) $sImportanceSQL .= " * case when ST_Contains($this->sViewboxSmallSQL, centroid) THEN 1 ELSE 0.5 END";
1402                                                         if ($this->sViewboxLargeSQL) $sImportanceSQL .= " * case when ST_Contains($this->sViewboxLargeSQL, centroid) THEN 1 ELSE 0.5 END";
1403
1404                                                         $aOrder[] = "$sImportanceSQL DESC";
1405                                                         if (sizeof($aSearch['aFullNameAddress']))
1406                                                         {
1407                                                                 $sExactMatchSQL = '(select count(*) from (select unnest(ARRAY['.join($aSearch['aFullNameAddress'],",").']) INTERSECT select unnest(nameaddress_vector))s) as exactmatch';
1408                                                                 $aOrder[] = 'exactmatch DESC';
1409                                                         } else {
1410                                                                 $sExactMatchSQL = '0::int as exactmatch';
1411                                                         }
1412
1413                                                         if (sizeof($aTerms))
1414                                                         {
1415                                                                 $sSQL = "select place_id, ";
1416                                                                 $sSQL .= $sExactMatchSQL;
1417                                                                 $sSQL .= " from search_name";
1418                                                                 $sSQL .= " where ".join(' and ',$aTerms);
1419                                                                 $sSQL .= " order by ".join(', ',$aOrder);
1420                                                                 if ($aSearch['sHouseNumber'] || $aSearch['sClass'])
1421                                                                         $sSQL .= " limit 20";
1422                                                                 elseif (!sizeof($aSearch['aName']) && !sizeof($aSearch['aAddress']) && $aSearch['sClass'])
1423                                                                         $sSQL .= " limit 1";
1424                                                                 else
1425                                                                         $sSQL .= " limit ".$this->iLimit;
1426
1427                                                                 if (CONST_Debug) { var_dump($sSQL); }
1428                                                                 $aViewBoxPlaceIDs = $this->oDB->getAll($sSQL);
1429                                                                 if (PEAR::IsError($aViewBoxPlaceIDs))
1430                                                                 {
1431                                                                         failInternalError("Could not get places for search terms.", $sSQL, $aViewBoxPlaceIDs);
1432                                                                 }
1433                                                                 //var_dump($aViewBoxPlaceIDs);
1434                                                                 // Did we have an viewbox matches?
1435                                                                 $aPlaceIDs = array();
1436                                                                 $bViewBoxMatch = false;
1437                                                                 foreach($aViewBoxPlaceIDs as $aViewBoxRow)
1438                                                                 {
1439                                                                         //if ($bViewBoxMatch == 1 && $aViewBoxRow['in_small'] == 'f') break;
1440                                                                         //if ($bViewBoxMatch == 2 && $aViewBoxRow['in_large'] == 'f') break;
1441                                                                         //if ($aViewBoxRow['in_small'] == 't') $bViewBoxMatch = 1;
1442                                                                         //else if ($aViewBoxRow['in_large'] == 't') $bViewBoxMatch = 2;
1443                                                                         $aPlaceIDs[] = $aViewBoxRow['place_id'];
1444                                                                         $this->exactMatchCache[$aViewBoxRow['place_id']] = $aViewBoxRow['exactmatch'];
1445                                                                 }
1446                                                         }
1447                                                         //var_Dump($aPlaceIDs);
1448                                                         //exit;
1449
1450                                                         //now search for housenumber, if housenumber provided
1451                                                         if ($aSearch['sHouseNumber'] && sizeof($aPlaceIDs))
1452                                                         {
1453                                                                 $searchedHousenumber = intval($aSearch['sHouseNumber']);
1454                                                                 $aRoadPlaceIDs = $aPlaceIDs;
1455                                                                 $sPlaceIDs = join(',',$aPlaceIDs);
1456
1457                                                                 // Now they are indexed look for a house attached to a street we found
1458                                                                 $sHouseNumberRegex = '\\\\m'.$aSearch['sHouseNumber'].'\\\\M';
1459                                                                 $sSQL = "select place_id from placex where parent_place_id in (".$sPlaceIDs.") and transliteration(housenumber) ~* E'".$sHouseNumberRegex."'";
1460                                                                 if (sizeof($this->aExcludePlaceIDs))
1461                                                                 {
1462                                                                         $sSQL .= " and place_id not in (".join(',',$this->aExcludePlaceIDs).")";
1463                                                                 }
1464                                                                 $sSQL .= " limit $this->iLimit";
1465                                                                 if (CONST_Debug) var_dump($sSQL);
1466                                                                 $aPlaceIDs = $this->oDB->getCol($sSQL);
1467
1468                                                                 // if nothing found, search in the interpolation line table
1469                                                                 if(!sizeof($aPlaceIDs))
1470                                                                 {
1471                                                                         // do we need to use transliteration and the regex for housenumbers???
1472                                                                         //new query for lines, not housenumbers anymore
1473                                                                         if($searchedHousenumber%2 == 0){
1474                                                                                 //if housenumber is even, look for housenumber in streets with interpolationtype even or all
1475                                                                                 $sSQL = "select distinct place_id from location_property_osmline where parent_place_id in (".$sPlaceIDs.") and (interpolationtype='even' or interpolationtype='all') and ".$searchedHousenumber.">=startnumber and ".$searchedHousenumber."<=endnumber";
1476                                                                         }else{
1477                                                                                 //look for housenumber in streets with interpolationtype odd or all
1478                                                                                 $sSQL = "select distinct place_id from location_property_osmline where parent_place_id in (".$sPlaceIDs.") and (interpolationtype='odd' or interpolationtype='all') and ".$searchedHousenumber.">=startnumber and ".$searchedHousenumber."<=endnumber";
1479                                                                         }
1480
1481                                                                         if (sizeof($this->aExcludePlaceIDs))
1482                                                                         {
1483                                                                                 $sSQL .= " and parent_place_id not in (".join(',', $this->aExcludePlaceIDs).")";
1484                                                                         }
1485                                                                         //$sSQL .= " limit $this->iLimit";
1486                                                                         if (CONST_Debug) var_dump($sSQL);
1487                                                                         //get place IDs
1488                                                                         $aPlaceIDs = $this->oDB->getCol($sSQL, 0);
1489                                                                 }
1490
1491                                                                 // If nothing found try the aux fallback table
1492                                                                 if (CONST_Use_Aux_Location_data && !sizeof($aPlaceIDs))
1493                                                                 {
1494                                                                         $sSQL = "select place_id from location_property_aux where parent_place_id in (".$sPlaceIDs.") and housenumber = '".pg_escape_string($aSearch['sHouseNumber'])."'";
1495                                                                         if (sizeof($this->aExcludePlaceIDs))
1496                                                                         {
1497                                                                                 $sSQL .= " and parent_place_id not in (".join(',',$this->aExcludePlaceIDs).")";
1498                                                                         }
1499                                                                         //$sSQL .= " limit $this->iLimit";
1500                                                                         if (CONST_Debug) var_dump($sSQL);
1501                                                                         $aPlaceIDs = $this->oDB->getCol($sSQL);
1502                                                                 }
1503
1504                                                                 //if nothing was found in placex or location_property_aux, then search in Tiger data for this housenumber(location_property_tiger)
1505                                                                 $searchedHousenumber = intval($aSearch['sHouseNumber']);
1506                                                                 if (CONST_Use_US_Tiger_Data && !sizeof($aPlaceIDs))
1507                                                                 {
1508                                                                         //new query for lines, not housenumbers anymore
1509                                                                         if($searchedHousenumber%2 == 0){
1510                                                                                 //if housenumber is even, look for housenumber in streets with interpolationtype even or all
1511                                                                                 $sSQL = "select distinct place_id from location_property_tiger where parent_place_id in (".$sPlaceIDs.") and (interpolationtype='even' or interpolationtype='all') and ".$searchedHousenumber.">=startnumber and ".$searchedHousenumber."<=endnumber";
1512                                                                         }else{
1513                                                                                 //look for housenumber in streets with interpolationtype odd or all
1514                                                                                 $sSQL = "select distinct place_id from location_property_tiger where parent_place_id in (".$sPlaceIDs.") and (interpolationtype='odd' or interpolationtype='all') and ".$searchedHousenumber.">=startnumber and ".$searchedHousenumber."<=endnumber";
1515                                                                         }
1516
1517                                                                         if (sizeof($this->aExcludePlaceIDs))
1518                                                                         {
1519                                                                                 $sSQL .= " and place_id not in (".join(',', $this->aExcludePlaceIDs).")";
1520                                                                         }
1521                                                                         //$sSQL .= " limit $this->iLimit";
1522                                                                         if (CONST_Debug) var_dump($sSQL);
1523                                                                         //get place IDs
1524                                                                         $aPlaceIDs = $this->oDB->getCol($sSQL, 0);
1525                                                                 }
1526
1527                                                                 // Fallback to the road (if no housenumber was found)
1528                                                                 if (!sizeof($aPlaceIDs) && preg_match('/[0-9]+/', $aSearch['sHouseNumber']))
1529                                                                 {
1530                                                                         $aPlaceIDs = $aRoadPlaceIDs;
1531                                                                         //set to -1, if no housenumbers were found
1532                                                                         $searchedHousenumber = -1;
1533                                                                 }
1534                                                                 //else: housenumber was found, remains saved in searchedHousenumber
1535                                                         }
1536
1537
1538                                                         if ($aSearch['sClass'] && sizeof($aPlaceIDs))
1539                                                         {
1540                                                                 $sPlaceIDs = join(',', $aPlaceIDs);
1541                                                                 $aClassPlaceIDs = array();
1542
1543                                                                 if (!$aSearch['sOperator'] || $aSearch['sOperator'] == 'name')
1544                                                                 {
1545                                                                         // If they were searching for a named class (i.e. 'Kings Head pub') then we might have an extra match
1546                                                                         $sSQL = "select place_id from placex where place_id in ($sPlaceIDs) and class='".$aSearch['sClass']."' and type='".$aSearch['sType']."'";
1547                                                                         $sSQL .= " and linked_place_id is null";
1548                                                                         if ($sCountryCodesSQL) $sSQL .= " and calculated_country_code in ($sCountryCodesSQL)";
1549                                                                         $sSQL .= " order by rank_search asc limit $this->iLimit";
1550                                                                         if (CONST_Debug) var_dump($sSQL);
1551                                                                         $aClassPlaceIDs = $this->oDB->getCol($sSQL);
1552                                                                 }
1553
1554                                                                 if (!$aSearch['sOperator'] || $aSearch['sOperator'] == 'near') // & in
1555                                                                 {
1556                                                                         $sSQL = "select count(*) from pg_tables where tablename = 'place_classtype_".$aSearch['sClass']."_".$aSearch['sType']."'";
1557                                                                         $bCacheTable = $this->oDB->getOne($sSQL);
1558
1559                                                                         $sSQL = "select min(rank_search) from placex where place_id in ($sPlaceIDs)";
1560
1561                                                                         if (CONST_Debug) var_dump($sSQL);
1562                                                                         $this->iMaxRank = ((int)$this->oDB->getOne($sSQL));
1563
1564                                                                         // For state / country level searches the normal radius search doesn't work very well
1565                                                                         $sPlaceGeom = false;
1566                                                                         if ($this->iMaxRank < 9 && $bCacheTable)
1567                                                                         {
1568                                                                                 // Try and get a polygon to search in instead
1569                                                                                 $sSQL = "select geometry from placex where place_id in ($sPlaceIDs) and rank_search < $this->iMaxRank + 5 and st_geometrytype(geometry) in ('ST_Polygon','ST_MultiPolygon') order by rank_search asc limit 1";
1570                                                                                 if (CONST_Debug) var_dump($sSQL);
1571                                                                                 $sPlaceGeom = $this->oDB->getOne($sSQL);
1572                                                                         }
1573
1574                                                                         if ($sPlaceGeom)
1575                                                                         {
1576                                                                                 $sPlaceIDs = false;
1577                                                                         }
1578                                                                         else
1579                                                                         {
1580                                                                                 $this->iMaxRank += 5;
1581                                                                                 $sSQL = "select place_id from placex where place_id in ($sPlaceIDs) and rank_search < $this->iMaxRank";
1582                                                                                 if (CONST_Debug) var_dump($sSQL);
1583                                                                                 $aPlaceIDs = $this->oDB->getCol($sSQL);
1584                                                                                 $sPlaceIDs = join(',',$aPlaceIDs);
1585                                                                         }
1586
1587                                                                         if ($sPlaceIDs || $sPlaceGeom)
1588                                                                         {
1589
1590                                                                                 $fRange = 0.01;
1591                                                                                 if ($bCacheTable)
1592                                                                                 {
1593                                                                                         // More efficient - can make the range bigger
1594                                                                                         $fRange = 0.05;
1595
1596                                                                                         $sOrderBySQL = '';
1597                                                                                         if ($sNearPointSQL) $sOrderBySQL = "ST_Distance($sNearPointSQL, l.centroid)";
1598                                                                                         else if ($sPlaceIDs) $sOrderBySQL = "ST_Distance(l.centroid, f.geometry)";
1599                                                                                         else if ($sPlaceGeom) $sOrderBysSQL = "ST_Distance(st_centroid('".$sPlaceGeom."'), l.centroid)";
1600
1601                                                                                         $sSQL = "select distinct l.place_id".($sOrderBySQL?','.$sOrderBySQL:'')." from place_classtype_".$aSearch['sClass']."_".$aSearch['sType']." as l";
1602                                                                                         if ($sCountryCodesSQL) $sSQL .= " join placex as lp using (place_id)";
1603                                                                                         if ($sPlaceIDs)
1604                                                                                         {
1605                                                                                                 $sSQL .= ",placex as f where ";
1606                                                                                                 $sSQL .= "f.place_id in ($sPlaceIDs) and ST_DWithin(l.centroid, f.centroid, $fRange) ";
1607                                                                                         }
1608                                                                                         if ($sPlaceGeom)
1609                                                                                         {
1610                                                                                                 $sSQL .= " where ";
1611                                                                                                 $sSQL .= "ST_Contains('".$sPlaceGeom."', l.centroid) ";
1612                                                                                         }
1613                                                                                         if (sizeof($this->aExcludePlaceIDs))
1614                                                                                         {
1615                                                                                                 $sSQL .= " and l.place_id not in (".join(',',$this->aExcludePlaceIDs).")";
1616                                                                                         }
1617                                                                                         if ($sCountryCodesSQL) $sSQL .= " and lp.calculated_country_code in ($sCountryCodesSQL)";
1618                                                                                         if ($sOrderBySQL) $sSQL .= "order by ".$sOrderBySQL." asc";
1619                                                                                         if ($this->iOffset) $sSQL .= " offset $this->iOffset";
1620                                                                                         $sSQL .= " limit $this->iLimit";
1621                                                                                         if (CONST_Debug) var_dump($sSQL);
1622                                                                                         $aClassPlaceIDs = array_merge($aClassPlaceIDs, $this->oDB->getCol($sSQL));
1623                                                                                 }
1624                                                                                 else
1625                                                                                 {
1626                                                                                         if (isset($aSearch['fRadius']) && $aSearch['fRadius']) $fRange = $aSearch['fRadius'];
1627
1628                                                                                         $sOrderBySQL = '';
1629                                                                                         if ($sNearPointSQL) $sOrderBySQL = "ST_Distance($sNearPointSQL, l.geometry)";
1630                                                                                         else $sOrderBySQL = "ST_Distance(l.geometry, f.geometry)";
1631
1632                                                                                         $sSQL = "select distinct l.place_id".($sOrderBysSQL?','.$sOrderBysSQL:'')." from placex as l,placex as f where ";
1633                                                                                         $sSQL .= "f.place_id in ( $sPlaceIDs) and ST_DWithin(l.geometry, f.centroid, $fRange) ";
1634                                                                                         $sSQL .= "and l.class='".$aSearch['sClass']."' and l.type='".$aSearch['sType']."' ";
1635                                                                                         if (sizeof($this->aExcludePlaceIDs))
1636                                                                                         {
1637                                                                                                 $sSQL .= " and l.place_id not in (".join(',',$this->aExcludePlaceIDs).")";
1638                                                                                         }
1639                                                                                         if ($sCountryCodesSQL) $sSQL .= " and l.calculated_country_code in ($sCountryCodesSQL)";
1640                                                                                         if ($sOrderBy) $sSQL .= "order by ".$OrderBysSQL." asc";
1641                                                                                         if ($this->iOffset) $sSQL .= " offset $this->iOffset";
1642                                                                                         $sSQL .= " limit $this->iLimit";
1643                                                                                         if (CONST_Debug) var_dump($sSQL);
1644                                                                                         $aClassPlaceIDs = array_merge($aClassPlaceIDs, $this->oDB->getCol($sSQL));
1645                                                                                 }
1646                                                                         }
1647                                                                 }
1648
1649                                                                 $aPlaceIDs = $aClassPlaceIDs;
1650
1651                                                         }
1652
1653                                                 }
1654
1655                                                 if (PEAR::IsError($aPlaceIDs))
1656                                                 {
1657                                                         failInternalError("Could not get place IDs from tokens." ,$sSQL, $aPlaceIDs);
1658                                                 }
1659
1660                                                 if (CONST_Debug) { echo "<br><b>Place IDs:</b> "; var_Dump($aPlaceIDs); }
1661
1662                                                 foreach($aPlaceIDs as $iPlaceID)
1663                                                 {
1664                                                         // array for placeID => -1 | Tiger housenumber
1665                                                         $aResultPlaceIDs[$iPlaceID] = $searchedHousenumber;
1666                                                 }
1667                                                 if ($iQueryLoop > 20) break;
1668                                         }
1669
1670                                         if (isset($aResultPlaceIDs) && sizeof($aResultPlaceIDs) && ($this->iMinAddressRank != 0 || $this->iMaxAddressRank != 30))
1671                                         {
1672                                                 // Need to verify passes rank limits before dropping out of the loop (yuk!)
1673                                                 // reduces the number of place ids, like a filter
1674                                                 // rank_address is 30 for interpolated housenumbers
1675                                                 $sSQL = "select place_id from placex where place_id in (".join(',',array_keys($aResultPlaceIDs)).") ";
1676                                                 $sSQL .= "and (placex.rank_address between $this->iMinAddressRank and $this->iMaxAddressRank ";
1677                                                 if (14 >= $this->iMinAddressRank && 14 <= $this->iMaxAddressRank) $sSQL .= " OR (extratags->'place') = 'city'";
1678                                                 if ($this->aAddressRankList) $sSQL .= " OR placex.rank_address in (".join(',',$this->aAddressRankList).")";
1679                                                 if (CONST_Use_US_Tiger_Data)
1680                                                 {
1681                                                         $sSQL .= ") UNION select place_id from location_property_tiger where place_id in (".join(',',array_keys($aResultPlaceIDs)).") ";
1682                                                         $sSQL .= "and (30 between $this->iMinAddressRank and $this->iMaxAddressRank ";
1683                                                         if ($this->aAddressRankList) $sSQL .= " OR 30 in (".join(',',$this->aAddressRankList).")";
1684                                                 }
1685                                                 $sSQL .= ")";
1686                                                 if (CONST_Debug) var_dump($sSQL);
1687                                                 $aFilteredPlaceIDs = $this->oDB->getCol($sSQL);
1688                                                 $tempIDs = array();
1689                                                 foreach($aFilteredPlaceIDs as $placeID)
1690                                                 {
1691                                                         $tempIDs[$placeID] = $aResultPlaceIDs[$placeID];  //assign housenumber to placeID
1692                                                 }
1693                                                 $aResultPlaceIDs = $tempIDs;
1694                                         }
1695
1696                                         //exit;
1697                                         if (isset($aResultPlaceIDs) && sizeof($aResultPlaceIDs)) break;
1698                                         if ($iGroupLoop > 4) break;
1699                                         if ($iQueryLoop > 30) break;
1700                                 }
1701
1702                                 // Did we find anything?
1703                                 if (isset($aResultPlaceIDs) && sizeof($aResultPlaceIDs))
1704                                 {
1705                                         $aSearchResults = $this->getDetails($aResultPlaceIDs);
1706                                 }
1707
1708                         }
1709                         else
1710                         {
1711                                 // Just interpret as a reverse geocode
1712                                 $iPlaceID = geocodeReverse((float)$this->aNearPoint[0], (float)$this->aNearPoint[1]);
1713                                 if ($iPlaceID)
1714                                         $aSearchResults = $this->getDetails(array($iPlaceID));
1715                                 else
1716                                         $aSearchResults = array();
1717                         }
1718
1719                         // No results? Done
1720                         if (!sizeof($aSearchResults))
1721                         {
1722                                 if ($this->bFallback)
1723                                 {
1724                                         if ($this->fallbackStructuredQuery())
1725                                         {
1726                                                 return $this->lookup();
1727                                         }
1728                                 }
1729
1730                                 return array();
1731                         }
1732
1733                         $aClassType = getClassTypesWithImportance();
1734                         $aRecheckWords = preg_split('/\b[\s,\\-]*/u',$sQuery);
1735                         foreach($aRecheckWords as $i => $sWord)
1736                         {
1737                                 if (!preg_match('/\pL/', $sWord)) unset($aRecheckWords[$i]);
1738                         }
1739
1740                         if (CONST_Debug) { echo '<i>Recheck words:<\i>'; var_dump($aRecheckWords); }
1741
1742                         foreach($aSearchResults as $iResNum => $aResult)
1743                         {
1744                                 // Default
1745                                 $fDiameter = getResultDiameter($aResult);
1746
1747                                 $oPlaceLookup = new PlaceLookup($this->oDB);
1748                                 $oPlaceLookup->setIncludePolygonAsPoints($this->bIncludePolygonAsPoints);
1749                                 $oPlaceLookup->setIncludePolygonAsText($this->bIncludePolygonAsText);
1750                                 $oPlaceLookup->setIncludePolygonAsGeoJSON($this->bIncludePolygonAsGeoJSON);
1751                                 $oPlaceLookup->setIncludePolygonAsKML($this->bIncludePolygonAsKML);
1752                                 $oPlaceLookup->setIncludePolygonAsSVG($this->bIncludePolygonAsSVG);
1753                                 $oPlaceLookup->setPolygonSimplificationThreshold($this->fPolygonSimplificationThreshold);
1754
1755                                 $aOutlineResult = $oPlaceLookup->getOutlines($aResult['place_id'], $aResult['lon'], $aResult['lat'], $fDiameter/2);
1756                                 if ($aOutlineResult)
1757                                 {
1758                                         $aResult = array_merge($aResult, $aOutlineResult);
1759                                 }
1760
1761                                 if ($aResult['extra_place'] == 'city')
1762                                 {
1763                                         $aResult['class'] = 'place';
1764                                         $aResult['type'] = 'city';
1765                                         $aResult['rank_search'] = 16;
1766                                 }
1767
1768                                 // Is there an icon set for this type of result?
1769                                 if (isset($aClassType[$aResult['class'].':'.$aResult['type']]['icon'])
1770                                                 && $aClassType[$aResult['class'].':'.$aResult['type']]['icon'])
1771                                 {
1772                                         $aResult['icon'] = CONST_Website_BaseURL.'images/mapicons/'.$aClassType[$aResult['class'].':'.$aResult['type']]['icon'].'.p.20.png';
1773                                 }
1774
1775                                 if (isset($aClassType[$aResult['class'].':'.$aResult['type'].':'.$aResult['admin_level']]['label'])
1776                                                 && $aClassType[$aResult['class'].':'.$aResult['type'].':'.$aResult['admin_level']]['label'])
1777                                 {
1778                                         $aResult['label'] = $aClassType[$aResult['class'].':'.$aResult['type'].':'.$aResult['admin_level']]['label'];
1779                                 }
1780                                 elseif (isset($aClassType[$aResult['class'].':'.$aResult['type']]['label'])
1781                                                 && $aClassType[$aResult['class'].':'.$aResult['type']]['label'])
1782                                 {
1783                                         $aResult['label'] = $aClassType[$aResult['class'].':'.$aResult['type']]['label'];
1784                                 }
1785                                 // if tag '&addressdetails=1' is set in query
1786                                 if ($this->bIncludeAddressDetails)
1787                                 {
1788                                         // getAddressDetails() is defined in lib.php and uses the SQL function get_addressdata in functions.sql
1789                                         $aResult['address'] = getAddressDetails($this->oDB, $sLanguagePrefArraySQL, $aResult['place_id'], $aResult['country_code'], $aResultPlaceIDs[$aResult['place_id']]);
1790                                         if ($aResult['extra_place'] == 'city' && !isset($aResult['address']['city']))
1791                                         {
1792                                                 $aResult['address'] = array_merge(array('city' => array_shift(array_values($aResult['address']))), $aResult['address']);
1793                                         }
1794                                 }
1795                                 if ($this->bIncludeExtraTags)
1796                                 {
1797                                         if ($aResult['extra'])
1798                                         {
1799                                                 $aResult['sExtraTags'] = json_decode($aResult['extra']);
1800                                         }
1801                                         else
1802                                         {
1803                                                 $aResult['sExtraTags'] = (object) array();
1804                                         }
1805                                 }
1806
1807                                 if ($this->bIncludeNameDetails)
1808                                 {
1809                                         if ($aResult['names'])
1810                                         {
1811                                                 $aResult['sNameDetails'] = json_decode($aResult['names']);
1812                                         }
1813                                         else
1814                                         {
1815                                                 $aResult['sNameDetails'] = (object) array();
1816                                         }
1817                                 }
1818
1819                                 // Adjust importance for the number of exact string matches in the result
1820                                 $aResult['importance'] = max(0.001,$aResult['importance']);
1821                                 $iCountWords = 0;
1822                                 $sAddress = $aResult['langaddress'];
1823                                 foreach($aRecheckWords as $i => $sWord)
1824                                 {
1825                                         if (stripos($sAddress, $sWord)!==false)
1826                                         {
1827                                                 $iCountWords++;
1828                                                 if (preg_match("/(^|,)\s*".preg_quote($sWord, '/')."\s*(,|$)/", $sAddress)) $iCountWords += 0.1;
1829                                         }
1830                                 }
1831
1832                                 $aResult['importance'] = $aResult['importance'] + ($iCountWords*0.1); // 0.1 is a completely arbitrary number but something in the range 0.1 to 0.5 would seem right
1833
1834                                 $aResult['name'] = $aResult['langaddress'];
1835                                 // secondary ordering (for results with same importance (the smaller the better):
1836                                 //   - approximate importance of address parts
1837                                 $aResult['foundorder'] = -$aResult['addressimportance']/10;
1838                                 //   - number of exact matches from the query
1839                                 if (isset($this->exactMatchCache[$aResult['place_id']]))
1840                                         $aResult['foundorder'] -= $this->exactMatchCache[$aResult['place_id']];
1841                                 else if (isset($this->exactMatchCache[$aResult['parent_place_id']]))
1842                                         $aResult['foundorder'] -= $this->exactMatchCache[$aResult['parent_place_id']];
1843                                 //  - importance of the class/type
1844                                 if (isset($aClassType[$aResult['class'].':'.$aResult['type']]['importance'])
1845                                         && $aClassType[$aResult['class'].':'.$aResult['type']]['importance'])
1846                                 {
1847                                         $aResult['foundorder'] += 0.0001 * $aClassType[$aResult['class'].':'.$aResult['type']]['importance'];
1848                                 }
1849                                 else
1850                                 {
1851                                         $aResult['foundorder'] += 0.01;
1852                                 }
1853                                 if (CONST_Debug) { var_dump($aResult); }
1854                                 $aSearchResults[$iResNum] = $aResult;
1855                         }
1856                         uasort($aSearchResults, 'byImportance');
1857
1858                         $aOSMIDDone = array();
1859                         $aClassTypeNameDone = array();
1860                         $aToFilter = $aSearchResults;
1861                         $aSearchResults = array();
1862
1863                         $bFirst = true;
1864                         foreach($aToFilter as $iResNum => $aResult)
1865                         {
1866                                 $this->aExcludePlaceIDs[$aResult['place_id']] = $aResult['place_id'];
1867                                 if ($bFirst)
1868                                 {
1869                                         $fLat = $aResult['lat'];
1870                                         $fLon = $aResult['lon'];
1871                                         if (isset($aResult['zoom'])) $iZoom = $aResult['zoom'];
1872                                         $bFirst = false;
1873                                 }
1874                                 if (!$this->bDeDupe || (!isset($aOSMIDDone[$aResult['osm_type'].$aResult['osm_id']])
1875                                                         && !isset($aClassTypeNameDone[$aResult['osm_type'].$aResult['class'].$aResult['type'].$aResult['name'].$aResult['admin_level']])))
1876                                 {
1877                                         $aOSMIDDone[$aResult['osm_type'].$aResult['osm_id']] = true;
1878                                         $aClassTypeNameDone[$aResult['osm_type'].$aResult['class'].$aResult['type'].$aResult['name'].$aResult['admin_level']] = true;
1879                                         $aSearchResults[] = $aResult;
1880                                 }
1881
1882                                 // Absolute limit on number of results
1883                                 if (sizeof($aSearchResults) >= $this->iFinalLimit) break;
1884                         }
1885
1886                         return $aSearchResults;
1887
1888                 } // end lookup()
1889
1890
1891         } // end class
1892