public function get($param = null, $or = null)
    {
        if ($param === null) {
            return (isset(self::$cfg[$this->file])) ? self::$cfg[$this->file] : null;
        }

        return (isset(self::$cfg[$this->file][$param]) and !empty(self::$cfg[$this->file][$param])) ? self::$cfg[$this->file][$param] : $or;
    }
public function get($param = null, $or = null)
    {
        if ($param === null) {
            return (isset(self::$cfg[$this->file])) ? self::$cfg[$this->file] : null;
        }

        return (isset(self::$cfg[$this->file][$param]) and !empty(self::$cfg[$this->file][$param])) ? self::$cfg[$this->file][$param] : $or;
    }
@param null $param
@param null $or

@return mixed|null