Gaoming13\WechatPhpSdk\Api::get_online_kf_list PHP Method

    public function get_online_kf_list()
    {
        $url = self::API_DOMAIN . 'cgi-bin/customservice/getonlinekflist?access_token=' . $this->get_access_token();
        $res = HttpCurl::get($url, 'json');
        // 异常处理: 获取时网络错误
        if ($res === false) {
            return Error::code('ERR_GET');
        }
        // 判断是否调用成功
        if (isset($res->kf_online_list)) {
            return array(null, $res->kf_online_list);
        } else {
            return array($res, null);
        }
    }