note 86787 added to function.http-negotiate-language

as I don't have this function available I tried to write it myself. Maybe useful for someone else, too. <?php /* determine which language out of an available set the user prefers most $available_languages array with language-tag-strings (must be lowercase) that are available $http_accept_language a HTTP_ACCEPT_LANGUAGE string (read from $_SERVER['HTTP_ACCEPT_LANGUAGE'] if left out) */ function prefered_language ($available_languages,$http_accept_language="auto") { // if $http_accept_language was left out, read it from the HTTP-Header if ($http_accept_language == "auto") $http_accept_language = $_SERVER['HTTP_ACCEPT_LANGUAGE']; // standard for HTTP_ACCEPT_LANGUAGE is defined under // http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.4 // pattern to find is therefore something like this: // 1#( language-range [ ";" "q" "=" qvalue ] ) // where: // language-range = ( ( 1*8ALPHA *( "-" 1*8ALPHA ) ) | "*" ) // qvalue = ( "0" [ "." 0*3DIGIT ] ) // | ( "1" [ "." 0*3("0") ] ) preg_match_all("/([[:alpha:]]{1,8})(-([[:alpha:]|-]{1,8}))?" . "(\s*;\s*q\s*=\s*(1\.0{0,3}|0\.\d{0,3}))?\s*(,|$)/i", $http_accept_language, $hits, PREG_SET_ORDER); // default language (in case of no hits) is the first in the array $bestlang = $available_languages[0]; $bestqval = 0; foreach ($hits as $arr) { // read data from the array of this hit $langprefix = strtolower ($arr[1]); if (!empty($arr[3])) { $langrange = strtolower ($arr[3]); $language = $langprefix . "-" . $langrange; } else $language = $langprefix; $qvalue = 1.0; if (!empty($arr[5])) $qvalue = floatval($arr[5]); // find q-maximal language if (in_array($language,$available_languages) && ($qvalue > $bestqval)) { $bestlang = $language; $bestqval = $qvalue; } // if no direct hit, try the prefix only but decrease q-value by 10% (as http_negotiate_language does) else if (in_array($languageprefix,$available_languages) && (($qvalue*0.9) > $bestqval)) { $bestlang = $languageprefix; $bestqval = $qvalue*0.9; } } return $bestlang; } ?> ---- Server IP: 212.63.193.10 Probable Submitter: 193.11.218.159 ---- Manual Page -- http://www.php.net/manual/en/function.http-negotiate-language.php Edit -- https://master.php.net/note/edit/86787 Del: integrated -- https://master.php.net/note/delete/86787/integrated Del: useless -- https://master.php.net/note/delete/86787/useless Del: bad code -- https://master.php.net/note/delete/86787/bad+code Del: spam -- https://master.php.net/note/delete/86787/spam Del: non-english -- https://master.php.net/note/delete/86787/non-english Del: in docs -- https://master.php.net/note/delete/86787/in+docs Del: other reasons-- https://master.php.net/note/delete/86787 Reject -- https://master.php.net/note/reject/86787 Search -- https://master.php.net/manage/user-notes.php