<?php
require "weixin.php";
require "xiaodu.php";
require "mysql.php";
$weixin = new Weixin();
$signature = $_GET["signature"];
$timestamp = $_GET["timestamp"];
$nonce = $_GET["nonce"];
$token = 'cuiqingcai';
$tmpArr = array($timestamp, $nonce, $token);
sort($tmpArr, SORT_STRING);
$tmpStr = implode($tmpArr);
$tmpStr = sha1($tmpStr);
if ($tmpStr == $signature) {
$weixin->response();
}