Curl\Curl::__get PHP 메소드

    public function __get($name)
    {
        $return = null;
        if (in_array($name, self::$deferredProperties) && is_callable(array($this, $getter = '__get_' . $name))) {
            $return = $this->{$name} = $this->{$getter}();
        }
        return $return;
    }