微信小程式配置訊息推送的時候一般都會出現Token驗證失敗的問題，這個錯誤是因為，你的介面頁面還沒有反饋正確的資訊給微信介面，網友們也給出了一些解決方法，但有些能夠配置成功，有些則不然。下面給出網友提供的2種比較容易配置成功的php介面驗證程式碼。

把程式碼放到可訪問的地址

程式碼示例一（我的驗證可以成功）：

<?php  
//1. 將timestamp , nonce , token 按照字典排序  
$timestamp = $_GET['timestamp'];  
$nonce = $_GET['nonce'];  
$token = "你自定義的Token值";  
$signature = $_GET['signature'];  
$array = array($timestamp,$nonce,$token);  
sort($array);  
  
//2.將排序後的三個引數拼接後用sha1加密  
$tmpstr = implode('',$array);  
$tmpstr = sha1($tmpstr);  
  
//3. 將加密後的字串與 signature 進行對比, 判斷該請求是否來自微信  
if($tmpstr == $signature)  
{  
    echo $_GET['echostr'];  
    exit;  
}  
 

示例二

<?php  
/** 
  * wechat php test 
  */  
  
//define your token  
define("TOKEN", "自定義token");  
$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, $nonce);  
        sort($tmpArr);  
        $tmpStr = implode( $tmpArr );  
        $tmpStr = sha1( $tmpStr );  
          
        if( $tmpStr == $signature ){  
            return true;  
        }else{  
            return false;  
        }  
    }  
}  
  
?>