65 lines
2.3 KiB
PHP
65 lines
2.3 KiB
PHP
<?php
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/**
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* Get the language code from the browser
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*
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* @param array Allowed Languages "array('cs-cz','de-de','en-us','it-it','ja-jp','nl-nl','pt-br','sl-si')"
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* @param string Default language
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* @param string Language string from HTTP-Header
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* @param bool Strict-Mode
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* @return array|int Data as array or null
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*/
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error_reporting(0);
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function getBrowserLanguage($arrAllowedLanguages, $strDefaultLanguage, $strLangVariable = null, $boolStrictMode = true) {
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if (isset($_REQUEST ['language'])) {
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if (strlen($_REQUEST ['language']) == 2) {
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return strtolower($_REQUEST ['language']);
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}
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foreach ($arrAllowedLanguages as $strValue) {
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if (preg_match('/^' . $strValue . '\-/i', $_REQUEST ['language'])) {
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return strtolower($strValue);
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}
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}
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}
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if (!is_array($arrAllowedLanguages)) {
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if (strpos($arrAllowedLanguages,';')) {
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$array = explode(';', $arrAllowedLanguages);
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$arrAllowedLanguages = $array;
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}
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}
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if (!isset($_SERVER ['HTTP_ACCEPT_LANGUAGE'])) {
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return $arrAllowedLanguages [0];
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}
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if ($strLangVariable === null) $strLangVariable = $_SERVER ['HTTP_ACCEPT_LANGUAGE'];
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if (empty($strLangVariable)) return $strDefaultLanguage;
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$arrAcceptedLanguages = preg_split('/,\s*/', $strLangVariable);
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$strCurrentLanguage = $strDefaultLanguage;
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$intCurrentQ = 0;
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foreach ($arrAcceptedLanguages as $arrAcceptedLanguage) {
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$boolResult = preg_match ('/^([a-z]{1,8}(?:-[a-z]{1,8})*)' . '(?:;\s*q=(0(?:\.[0-9]{1,3})?|1(?:\.0{1,3})?))?$/i', $arrAcceptedLanguage, $arrMatches);
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if (!$boolResult) continue;
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$arrLangCode = explode ('-', $arrMatches [1]);
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if (isset($arrMatches [2]))
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$intLangQuality = (float)$arrMatches [2];
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else
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$intLangQuality = 1.0;
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while (count ($arrLangCode)) {
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if (!is_array($arrAllowedLanguages)) $arrAllowedLanguages = array($arrAllowedLanguages);
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if (in_array (strtolower (join ('-', $arrLangCode)), $arrAllowedLanguages)) {
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if ($intLangQuality > $intCurrentQ) {
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$strCurrentLanguage = strtolower (join ('-', $arrLangCode));
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$intCurrentQ = $intLangQuality;
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break;
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}
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}
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if ($boolStrictMode) break;
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array_pop ($arrLangCode);
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}
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}
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return $strCurrentLanguage;
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}
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// accept the following languages, otherwise fall back to "en-us"
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$browserLang = getBrowserLanguage(array('cs-cz', 'de-de', 'en-us', 'it-it', 'ja-jp', 'nl-nl', 'pt-br', 'sl-si'), 'en-us');
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?>
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