微信企业号验证

<?php
//添加腾讯提供的接口文件
include_once "WXBizMsgCrypt.php";

//设置自己企业号的相关参数
$encodingAesKey="";
$corpId="";
$token="";

//获取待验证的参数
$sVerifyMsgSig = $_GET["msg_signature"];
$sVerifyTimeStamp = $_GET["timestamp"];
$sVerifyNonce = $_GET["nonce"];
$sVerifyEchoStr = $_GET["echostr"];

//以企业号参数为参数生成解码对象
$wxcpt = new WXBizMsgCrypt($token, $encodingAesKey, $corpId);

//进行地址解析
$errCode = $wxcpt->VerifyURL($sVerifyMsgSig, $sVerifyTimeStamp, $sVerifyNonce, $sVerifyEchoStr, $sEchoStr);
if ($errCode == 0) {
    //如果没有异常就返回加密的echostr的明文
    echo $sEchoStr;
} else {
    //出现异常就返回异常编码
    echo $errCode;
}

?>