public static function GetUserLang() { if (self::$lang != null) { return self::$lang; } $lang = isset($_COOKIE['lang']) ? $_COOKIE['lang'] : ""; if ($lang == "") { if (isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])) { $lang = $_SERVER['HTTP_ACCEPT_LANGUAGE']; } else { $lang = self::$defaultLang; } } $lang = substr($lang, 0, 2); self::$lang = $lang; return $lang; }