<? php
//将timestamp,nonce,token按字典序排序
$timestamp = $_GET['timestamp'];
$nonce = $_GET['nonce'];
$token = 'TOKEN';
$signature = $_GET['signature'];
$echostr = $_GET['echostr']
$arr = array($timestamp,$nonce,$token);
sort($arr,SORT_STRING);
//将排序后的数组拼接成字符串
$tmpstr =implode($arr);
$tmpstr =sha1($tmpstr);
//将加密后的字符串进行对比
if($tmpstr == $signature)
{
echo $echostr;
exit;
}
Guard丿星魂