<?php

	function logStart(&$oDB, $sType = '', $sQuery = '', $aLanguageList = array())
	{
		$fStartTime = microtime(true);
		$aStartTime = explode('.', $fStartTime);
		if (!isset($aStartTime[1])) $aStartTime[1] = '0';

		$sOutputFormat = '';
		if (isset($_GET['format'])) $sOutputFormat = $_GET['format'];

		if ($sType == 'reverse')
		{
			$sOutQuery = (isset($_GET['lat'])?$_GET['lat']:'').'/';
			if (isset($_GET['lon'])) $sOutQuery .= $_GET['lon'];
			if (isset($_GET['zoom'])) $sOutQuery .= '/'.$_GET['zoom'];
		}
		else
			$sOutQuery = $sQuery;

		$hLog = array(
				date('Y-m-d H:i:s',$aStartTime[0]).'.'.$aStartTime[1],
				$_SERVER["REMOTE_ADDR"],
				$_SERVER['QUERY_STRING'],
				$sOutQuery,
				$sType,
				$fStartTime
				);

		if (CONST_Log_DB)
		{
			if (isset($_GET['email']))
				$sUserAgent = $_GET['email'];
			elseif (isset($_SERVER['HTTP_REFERER']))
				$sUserAgent = $_SERVER['HTTP_REFERER'];
			elseif (isset($_SERVER['HTTP_USER_AGENT']))
				$sUserAgent = $_SERVER['HTTP_USER_AGENT'];
			else
				$sUserAgent = '';
			$sSQL = 'insert into new_query_log (type,starttime,query,ipaddress,useragent,language,format,searchterm)';
			$sSQL .= ' values ('.getDBQuoted($sType).','.getDBQuoted($hLog[0]).','.getDBQuoted($hLog[2]);
			$sSQL .= ','.getDBQuoted($hLog[1]).','.getDBQuoted($sUserAgent).','.getDBQuoted(join(',',$aLanguageList)).','.getDBQuoted($sOutputFormat).','.getDBQuoted($hLog[3]).')';
			$oDB->query($sSQL);
		}

		return $hLog;
	}

	function logEnd(&$oDB, $hLog, $iNumResults)
	{
		$fEndTime = microtime(true);

		if (CONST_Log_DB)
		{
			$aEndTime = explode('.', $fEndTime);
			if (!$aEndTime[1]) $aEndTime[1] = '0';
			$sEndTime = date('Y-m-d H:i:s',$aEndTime[0]).'.'.$aEndTime[1];

			$sSQL = 'update new_query_log set endtime = '.getDBQuoted($sEndTime).', results = '.$iNumResults;
			$sSQL .= ' where starttime = '.getDBQuoted($hLog[0]);
			$sSQL .= ' and ipaddress = '.getDBQuoted($hLog[1]);
			$sSQL .= ' and query = '.getDBQuoted($hLog[2]);
			$oDB->query($sSQL);
		}

		if (CONST_Log_File)
		{
			$aOutdata = sprintf("[%s] %.4f %d %s \"%s\"\n",
			                    $hLog[0], $fEndTime-$hLog[5], $iNumResults,
			                    $hLog[4], $hLog[2]);
			file_put_contents(CONST_Log_File, $aOutdata, FILE_APPEND | LOCK_EX);
		}

	}