wx pay debug

extend/payment/Weixin.php

@@ -509,6 +509,7 @@ class Weixin
         $xml = $this->ArrayToXml($data);
        // echo $xml;die;
         $result = $this->XmlToArray($this->HttpRequest('https://api.mch.weixin.qq.com/secapi/pay/refund', $xml, true));
+        print_r($result);die;
         if(!empty($result['return_code']) && $result['return_code'] == 'SUCCESS' && !empty($result['prepay_id']))
         {
             // 统一返回格式