我在新浪sae申请了账号之后创建了一个应用作为测试微信接口使用，代码用的都是官方教程的，但是在提交服务器配置的时候不是连接失败就是token验证失败，地址和token我确认没有填写错误，实在找不出原因。

于是我在本地进行了一下测试，把新浪sae日志中心微信发送的get请求复制过来，加在本地的地址后面模仿微信的请求，!
!
![图片描述][2]



结果发现，程序里接收的timestamp和nonce加上token的字符串按要求排序后和链接里的signature根本不相同。!
!![图片描述][3]




有大神遇到过这个问题吗？还是我哪里操作不对？程序是照搬官方文档的啊。求指点啊！
`

/**

• wechat php test
  */

//define your token
define("TOKEN", "weixin");
$wechatObj = new wechatCallbackapiTest();
$wechatObj->valid();

class wechatCallbackapiTest
{

public function valid()
{
    $echoStr = $_GET["echostr"];

    //valid signature , option
    if($this->checkSignature()){
        echo $echoStr;
        exit;
    }
}

public function responseMsg()
{
    //get post data, May be due to the different environments
    $postStr = $GLOBALS["HTTP_RAW_POST_DATA"];

    //extract post data
    if (!empty($postStr)){
            
            $postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);
            $fromUsername = $postObj->FromUserName;
            $toUsername = $postObj->ToUserName;
            $keyword = trim($postObj->Content);
            $time = time();
            $textTpl = "<xml>
                        <ToUserName><![CDATA[%s]]></ToUserName>
                        <FromUserName><![CDATA[%s]]></FromUserName>
                        <CreateTime>%s</CreateTime>
                        <MsgType><![CDATA[%s]]></MsgType>
                        <Content><![CDATA[%s]]></Content>
                        <FuncFlag>0</FuncFlag>
                        </xml>";             
            if(!empty( $keyword ))
            {
                $msgType = "text";
                $contentStr = "Welcome to wechat world!";
                $resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time, $msgType, $contentStr);
                echo $resultStr;
            }else{
                echo "Input something...";
            }

    }else {
        echo "";
        exit;
    }
}
    
private function checkSignature()
{
    $signature = $_GET["signature"];
    $timestamp = $_GET["timestamp"];
    $nonce = $_GET["nonce"];    
            
    $token = TOKEN;
    $tmpArr = array($token, $timestamp, $nonce);
    print_r($tmpArr);
    echo "<hr>";
    sort($tmpArr,SORT_STRING);
    print_r($tmpArr);
    echo "<hr>";
    $tmpStr = implode('', $tmpArr );
    echo $tmpStr;
    echo "<hr>";
    $tmpStr = sha1( $tmpStr );
    echo "sha1加密后:".$tmpStr;
    echo "<hr>";
    echo  'signature:'.$signature;
    
    if( $tmpStr == $signature ){
        return true;
    }else{
        return false;
    }
}

}
`