PHP WxPayReverse::toXml示例

 /**
  *
  * 撤销订单API接口，WxPayReverse中参数out_trade_no和transaction_id必须填写一个
  * appid、mchid、spbill_create_ip、nonce_str不需要填入
  * @param WxPayReverse $inputObj
  * @param int $timeOut
  * @throws WxPayException
  */
 public function reverse($inputObj, $timeOut = 6)
 {
     $url = "https://api.mch.weixin.qq.com/secapi/pay/reverse";
     //检测必填参数
     if (!$inputObj->isOutTradeNoSet() && !$inputObj->isTransactionIdSet()) {
         throw new WxPayException("撤销订单API接口中，参数out_trade_no和transaction_id必须填写一个！");
     }
     $inputObj->setAppid($this->apiConfig->appid);
     //公众账号ID
     $inputObj->setMchId($this->apiConfig->mchid);
     //商户号
     $inputObj->setMchKey($this->apiConfig->mchkey);
     //商户密钥
     $inputObj->setNonceStr($this->getNonceStr());
     //随机字符串
     $inputObj->setSign();
     //签名
     $xml = $inputObj->toXml();
     $startTimeStamp = $this->getMillisecond();
     //请求开始时间
     $response = $this->postXmlCurl($xml, $url, true, $timeOut);
     $result = WxPayResults::init($response, $this->apiConfig->mchkey);
     $this->reportCostTime($url, $startTimeStamp, $result);
     //上报请求花费时间
     return $result;
 }