X-Git-Url: https://git.openstreetmap.org./nominatim.git/blobdiff_plain/1787892d32351988231a60b71900c6a623609c54..544db4302625c1969d21195eb4653402405dc3f5:/lib/ParameterParser.php

diff --git a/lib/ParameterParser.php b/lib/ParameterParser.php
index 26b648bb..ad281d70 100644
--- a/lib/ParameterParser.php
+++ b/lib/ParameterParser.php
@@ -91,7 +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;