X-Git-Url: https://git.openstreetmap.org/nominatim.git/blobdiff_plain/47258f40ea77b9d73c7bfcca1a3489d9adeb30f3..d9e0ef0ebfbc2860e7c0b7e7510a4014300074be:/lib/ParameterParser.php

diff --git a/lib/ParameterParser.php b/lib/ParameterParser.php
index feddc3aa..ad281d70 100644
--- a/lib/ParameterParser.php
+++ b/lib/ParameterParser.php
@@ -74,7 +74,8 @@ class ParameterParser
         $sValue = $this->getString($sName);
 
         if ($sValue) {
-            return explode(',', $sValue);
+            // removes all NULL, FALSE and Empty Strings but leaves 0 (zero) values
+            return array_values(array_filter(explode(',', $sValue), 'strlen'));
         }
 
         return $aDefault;
@@ -90,7 +91,7 @@ class ParameterParser
         $sLangString = $this->getString('accept-language', $sFallback);
 
         if ($sLangString) {
-            if (preg_match_all('/(([a-z]{1,8})(-[a-z]{1,8})?)\s*(;\s*q\s*=\s*(1|0\.[0-9]+))?/i', $sLangString, $aLanguagesParse, PREG_SET_ORDER)) {
+            if (preg_match_all('/(([a-z]{1,8})([-_][a-z]{1,8})?)\s*(;\s*q\s*=\s*(1|0\.[0-9]+))?/i', $sLangString, $aLanguagesParse, PREG_SET_ORDER)) {
                 foreach ($aLanguagesParse as $iLang => $aLanguage) {
                     $aLanguages[$aLanguage[1]] = isset($aLanguage[5])?(float)$aLanguage[5]:1 - ($iLang/100);
                     if (!isset($aLanguages[$aLanguage[2]])) $aLanguages[$aLanguage[2]] = $aLanguages[$aLanguage[1]]/10;
@@ -98,7 +99,7 @@ class ParameterParser
                 arsort($aLanguages);
             }
         }
-        if (!sizeof($aLanguages) && CONST_Default_Language) {
+        if (empty($aLanguages) && CONST_Default_Language) {
             $aLanguages[CONST_Default_Language] = 1;
         }