微信开发返回验证来源方式代码

<?php

$xml = simplexml_load_string($GLOBALS['HTTP_RAW_POST_DATA']);


$arr = array(

    'appid'=> (string)$xml->AppId,

    'appkey'=>$appkey,

    'issubscribe'=> (string)$xml->IsSubscribe,

    'noncestr'=> (string)$xml->NonceStr,

    'openid'=> (string)$xml->OpenId,

    'timestamp'=> (string)$xml->TimeStamp

);



$sign = sha1( http_build_query($arr) );

if( $sign == $xml->AppSignature){

 echo "success";

}



?>