[图片] 白名单也添加IP地址了 访问url下的代码,，如下： <?php     $signature = $_GET["signature"];     $timestamp = $_GET["timestamp"];     $nonce = $_GET["nonce"];     $echoStr = $_GET["echostr"];     $token = "DFBEGRNETWRBIGJ9PBET74576574577";     $tmpArr = array($token, $timestamp, $nonce);     sort($tmpArr, SORT_STRING);     $tmpStr = implode( $tmpArr );     $tmpStr = sha1( $tmpStr );     if ($tmpStr == $signature ) {         return $echoStr;     }   ?>