Gaoming13\WechatPhpSdk\Api::shorturl PHP Method

    public function shorturl($long_url)
    {
        $url = self::API_DOMAIN . 'cgi-bin/shorturl?access_token=' . $this->get_access_token();
        $xml = '{"action":"long2short","long_url":"' . $long_url . '"}';
        $res = HttpCurl::post($url, $xml, 'json');
        // 异常处理: 获取时网络错误
        if ($res === false) {
            return Error::code('ERR_POST');
        }
        // 判断是否调用成功
        if ($res->errcode == 0) {
            return array(null, $res);
        } else {
            return array($res, null);
        }
    }