/**
*
* 申请退款，WxPayRefund中out_trade_no、transaction_id至少填一个且
* out_refund_no、total_fee、refund_fee、op_user_id为必填参数
* appid、mchid、spbill_create_ip、nonce_str不需要填入
* @param WxPayRefund $inputObj
* @param int $timeOut
* @throws WxPayException
* @return 成功时返回，其他抛异常
*/
public static function refund($inputObj, $timeOut = 6)
{
// $url = "https://api.mch.weixin.qq.com/secapi/pay/refund";
$url = WxPayConfig::REFUND_URL;
// 检测必填参数
if (!$inputObj->IsOut_trade_noSet() && !$inputObj->IsTransaction_idSet()) {
throw new WxPayException("退款申请接口中，out_trade_no、transaction_id至少填一个！");
} else {
if (!$inputObj->IsOut_refund_noSet()) {
throw new WxPayException("退款申请接口中，缺少必填参数out_refund_no！");
} else {
if (!$inputObj->IsTotal_feeSet()) {
throw new WxPayException("退款申请接口中，缺少必填参数total_fee！");
} else {
if (!$inputObj->IsRefund_feeSet()) {
throw new WxPayException("退款申请接口中，缺少必填参数refund_fee！");
} else {
if (!$inputObj->IsOp_user_idSet()) {
throw new WxPayException("退款申请接口中，缺少必填参数op_user_id！");
}
}
}
}
}
// $inputObj->SetAppid(WxPayConfig::APPID);//公众账号ID
$inputObj->SetAppid(WxPayConfig::$appId);
$inputObj->SetMch_id(WxPayConfig::$mchId);
//商户号
$inputObj->SetNonce_str(self::getNonceStr());
//随机字符串
$inputObj->SetSign();
//签名
$xml = $inputObj->ToXml();
$startTimeStamp = self::getMillisecond();
//请求开始时间
$response = self::postXmlCurl($xml, $url, true, $timeOut);
$result = WxPayResults::Init($response);
self::reportCostTime($url, $startTimeStamp, $result);
//上报请求花费时间
return $result;
}
/**
* 退款
* @throws WxPayException
*/
public function actionRefund()
{
$result = null;
// 微信订单号 优先级别高
if (isset($_REQUEST["transaction_id"]) && $_REQUEST["transaction_id"] != "") {
try {
$transaction_id = $_REQUEST["transaction_id"];
$total_fee = $_REQUEST["total_fee"];
$refund_fee = $_REQUEST["refund_fee"];
$input = new WxPayRefund();
$input->SetTransaction_id($transaction_id);
$input->SetTotal_fee($total_fee);
$input->SetRefund_fee($refund_fee);
$input->SetOut_refund_no(WxPayConfig::$mchId . date("YmdHis"));
$input->SetOp_user_id(WxPayConfig::$mchId);
$result = WxPayApi::refund($input);
} catch (WxPayException $ex) {
echo $ex->getMessage();
}
}
// 商户订单 优先级别低于微信订单
if (isset($_REQUEST["out_trade_no"]) && $_REQUEST["out_trade_no"] != "") {
try {
$out_trade_no = $_REQUEST["out_trade_no"];
$total_fee = $_REQUEST["total_fee"];
$refund_fee = $_REQUEST["refund_fee"];
$input = new WxPayRefund();
$input->SetOut_trade_no($out_trade_no);
$input->SetTotal_fee($total_fee);
$input->SetRefund_fee($refund_fee);
$input->SetOut_refund_no(WxPayConfig::$mchId . date("YmdHis"));
$input->SetOp_user_id(WxPayConfig::$mchId);
$result = WxPayApi::refund($input);
} catch (WxPayException $ex) {
echo $ex->getMessage();
}
}
}