PHP processing WeChat Payment callback Change Order payment status code

This article brings you the content is about PHP server app payment callback verification signature Change Order payment status, there is a certain reference value, the need for friends can refer to, I hope to help you.

<?php//Processing Payment Callback $time = time ();  $testxml = file_get_contents ("Php://input");       Receive payment success information sent by//file_put_contents (' D:\webroot\xianyijie\JK\weixin.txt ', $testxml);       $result = Xmldataparse ($testxml); File_put_contents ("D:\webroot\xianyijie\JK\weixin.txt", Json_encode ($result). " \ r \ n ", file_append);    Write information to TXT file for payment backup $sign _return = $result [' sign '];            If successfully returned if ($result [' return_code '] = = ' SUCCESS ' && $result [' result_code '] = = ' SUCCESS ') {            $key = "Merchant Key key";            unset ($result [' sign ']);   $sign = Appgetsign ($result, $key);  if ($sign = = $sign _return)//Verify signature {//This is the SQL operation after successful verification//If the operation is successful return "<xml><return_code><! [cdata[success]]></return_code> <return_msg><!                [cdata[ok]]></return_msg> </xml> ";   If the operation fails, return "fail";      }      }/* * format parameter formatted as URL parameter generate signature sign*/function appgetsign ($OBJ, $appwxpay _key) {foreach ($Obj as $k + $v) {    $Parameters [$k] = $v;    }//Signature step one: sorted by dictionary order parameter Ksort ($Parameters);    $String = Formatbizqueryparamap ($Parameters, false); Echo ' "string1" '. $String. '    </br> '; Signature Step Two: Add key if ($appwxpay _key) {$String = $String after the String.        &key= ". $appwxpay _key; }//echo "" string2 "". $String. "    </br> ";    Signature Step Three: MD5 encryption $String = MD5 ($String); echo "String3" ". $String."    </br> ";    Signature Step four: All characters to uppercase $result _ = Strtoupper ($String); echo "Result". $result _. "    </br> ";  return $result _;  }//xml Format Data parsing functions function Xmldataparse ($data) {$xml = Simplexml_load_string ($data, null,libxml_nocdata);  $array =json_decode (Json_encode ($xml), true); return $array; }?>

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