<?
    /**
     * All the supported languages have to be listed in the array below.
     * 1. The key must be the "official" ISO 639 language code and, if required,
     *    the dialect code. It can also contains some informations about the
     *    charset (see the Russian case).
     * 2. The first of the values associated to the key is used in a regular
     *    expression to find some keywords corresponding to the language inside two
     *    environment variables.
     *    These values contains:
     *    - the "official" ISO language code and, if required, the dialect code
     *      also ('bu' for Bulgarian, 'fr([-_][[:alpha:]]{2})?' for all French
     *      dialects, 'zh[-_]tw' for Chinese traditional...);
     *    - the '|' character (it means 'OR');
     *    - the full language name.
     * 3. The second values associated to the key is the name of the file to load
     *    without the 'inc.php' extension.
     * 4. The last values associated to the key is the language code as defined by
     *    the RFC1766.
     *
     * Beware that the sorting order (first values associated to keys by
     * alphabetical reverse order in the array) is important: 'zh-tw' (chinese
     * traditional) must be detected before 'zh' (chinese simplified) for
     * example.
     *
     * When there are more than one charset for a language, we put the -utf-8
     * first.
     */
		
    $available_languages = array(
    //*
        'de'=> array('de([-_][[:alpha:]]{2})?|german',      'german',      'de'),
        'en'=> array('en([-_][[:alpha:]]{2})?|english',     'english',     'en'),
        'es'=> array('es([-_][[:alpha:]]{2})?|espagnol',    'espagnol',    'es'),
        'ru'=> array('ru([-_][[:alpha:]]{2})?|russian',     'russian',     'ru'),
        'pt'=> array('pt([-_][[:alpha:]]{2})?|portuguese',  'portuguese',  'pt'),
        'cn'=> array('zh([-Hans][[:alpha:]]{2})?|chinese', 	'chinesese',   'cn')
    //*/
    );

		$default_lang = 'en';
		
    if (!defined('PMA_IS_LANG_DETECT_FUNCTION')) {
        define('PMA_IS_LANG_DETECT_FUNCTION', 1);

        /**
         * Analyzes some PHP environment variables to find the most probable language
         * that should be used
         *
         * @param   string   string to analyze
         * @param   integer  type of the PHP environment variable which value is $str
         *
         * @global  array    the list of available translations
         * @global  string   the retained translation keyword
         *
         * @access  private
         */
        function PMA_langDetect($str = '', $envType = '')
        {
            global $available_languages;
            global $lang;

            reset($available_languages);
            while (list($key, $value) = each($available_languages)) {
                // $envType =  1 for the 'HTTP_ACCEPT_LANGUAGE' environment variable,
                //             2 for the 'HTTP_USER_AGENT' one
                // support@proserver1.at 2011-11-15 if (($envType == 1 && eregi('^(' . $value[0] . ')(;q=[0-9]\\.[0-9])?$', $str))
                    // || ($envType == 2 && eregi('(\(|\[|;[[:space:]])(' . $value[0] . ')(;|\]|\))', $str))) {
                if (($envType == 1 && preg_match('/^(' . $value[0] . ')(;q=[0-9]\\.[0-9])?$/i', $str))
                    || ($envType == 2 && preg_match('/(\(|\[|;[[:space:]])(' . $value[0] . ')(;|\]|\))/i', $str))) {
                    $lang     = $key;
                    break;
                }
            }
        } // end of the 'PMA_langDetect()' function

    } // end if


    /**
     * Get some global variables if 'register_globals' is set to 'off'
     * loic1 - 2001/25/11: use the new globals arrays defined with php 4.1+
     */
    if (!empty($_SERVER['HTTP_ACCEPT_LANGUAGE'])) {
        $HTTP_ACCEPT_LANGUAGE = $_SERVER['HTTP_ACCEPT_LANGUAGE'];
    }
    else if (!empty($HTTP_SERVER_VARS['HTTP_ACCEPT_LANGUAGE'])) {
        $HTTP_ACCEPT_LANGUAGE = $HTTP_SERVER_VARS['HTTP_ACCEPT_LANGUAGE'];
    }

    if (!empty($_SERVER['HTTP_USER_AGENT'])) {
        $HTTP_USER_AGENT = $_SERVER['HTTP_USER_AGENT'];
    }
    else if (!empty($HTTP_SERVER_VARS['HTTP_USER_AGENT'])) {
        $HTTP_USER_AGENT = $HTTP_SERVER_VARS['HTTP_USER_AGENT'];
    }

    if (!isset($lang)) {
        if (isset($_GET) && !empty($_GET['lang'])) {
            $lang = $_GET['lang'];
        }
        else if (isset($HTTP_GET_VARS) && !empty($HTTP_GET_VARS['lang'])) {
            $lang = $HTTP_GET_VARS['lang'];
        }
        else if (isset($_POST) && !empty($_POST['lang'])) {
            $lang = $_POST['lang'];
        }
        else if (isset($HTTP_POST_VARS) && !empty($HTTP_POST_VARS['lang'])) {
            $lang = $HTTP_POST_VARS['lang'];
        }
        else if (isset($_COOKIE) && !empty($_COOKIE['lang'])) {
            $lang = $_COOKIE['lang'];
        }
        else if (isset($HTTP_COOKIE_VARS) && !empty($HTTP_COOKIE_VARS['lang'])) {
            $lang = $HTTP_COOKIE_VARS['lang'];
        }
    }


    /**
     * Do the work!
     */

    // If '$lang' is defined, ensure this is a valid translation
    if (!empty($lang) && empty($available_languages[$lang])) {
        $lang = '';
    }

    // Language is not defined yet :
    // 1. try to findout user's language by checking its HTTP_ACCEPT_LANGUAGE
    //    variable
    if (empty($lang) && !empty($HTTP_ACCEPT_LANGUAGE)) {
        $accepted    = explode(',', $HTTP_ACCEPT_LANGUAGE);
        $acceptedCnt = count($accepted);
        reset($accepted);
        for ($i = 0; $i < $acceptedCnt && empty($lang); $i++) {
            PMA_langDetect($accepted[$i], 1);
        }
    }
    // 2. try to findout user's language by checking its HTTP_USER_AGENT variable
    if (empty($lang) && !empty($HTTP_USER_AGENT)) {
        PMA_langDetect($HTTP_USER_AGENT, 2);
    }

    // 3. Didn't catch any valid lang : we use the default settings
    if (empty($lang)) {
        $lang = $default_lang;
    }

		//*
		$language_current = $available_languages[$lang][1];
		$language_iso = $available_languages[$lang][2];
		//$language_id = $available_languages[$lang][3];
		//*/
		
		header('Location: /'.$language_iso.'/');
?>