protected static function loadLanguage()
    {
        $langFile = PHPCI_DIR . 'PHPCI/Languages/lang.' . self::$language . '.php';

        if (!file_exists($langFile)) {
            return null;
        }

        require($langFile);

        if (is_null($strings) || !is_array($strings) || !count($strings)) {
            return null;
        }

        return $strings;
    }