微信消息回复

微信消息回复的实例代码

具体的看一下我带的simplexml_load_string()函数的博客解析

（数据的变化类型和数据传输才是数据的流向）

<?php 

    class  IndexController extends CommonController{

        //加载首页
        public function Index(){

            //define your token
            $wechatObj = new wechatCallbackapiTest();

            //判定变量
            if(isset($_GET['echostr'])){

                //有变量是验证 接口配置
                $wechatObj->valid();


            }else{
                
                $this->getQrcode();

                //设定菜单 没有验证信息
                $wechatObj->responseMsg();

            }

            // 有值返回，加载页面
            // require 'view/index.html';
            
        }



    }



    
    //聊天类
    class wechatCallbackapiTest  extends CommonController{

        //去验证
        public function valid(){

            $echostr = $_GET["echostr"];
            
            if($this->checkSignature()){

                echo $echostr;//推送
 
                exit;          
            }
        }

        //验证服务器地址的有效性
        private function checkSignature(){

            //签名
            $signature = $_GET["signature"];
            //时间戳
            $timestamp = $_GET["timestamp"];
            //随机数
            $nonce = $_GET["nonce"];    
            //常量token    
            $token = 'akira';
            //将接到的三个再结合成token,做成一个数组
            $tmpArr = array($token, $timestamp, $nonce);
            //对数组进行字典排序
            sort($tmpArr, SORT_STRING);
            //排序过的再合成一个字符串
            $tmpStr = implode( $tmpArr );
            //通过sha1()进行加密处理
            $tmpStr = sha1( $tmpStr );
            
            if( $tmpStr == $signature ){
                return true;
            }else{
                return false;
            }
        }


        //相应用户的消息.token验证
        public function responseMsg(){

            //get post data, May be due to the different environments
            $postStr = $GLOBALS["HTTP_RAW_POST_DATA"];

            //接收的消息写入日志
            // $this->logger('R 
'.$postStr);

            //extract post data
            if (!empty($postStr)){

                    //LIBXML_NOCDATA将 CDATA 设置为文本节点
                    $postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);

                    //获取传过来的数据类型
                    $msgType = trim($postObj->MsgType);     //text image location voice video link

                    switch($msgType){

                        case 'event':
                            $resultStr = $this->receiveEvent($postObj);
                            break;

                        case 'text':
                            $resultStr = $this->receiveText($postObj);  //接收文本消息
                            break;
                        
                        case 'image':
                            $resultStr = $this->receiveImage($postObj); //接收图片消息
                            break;

                        case 'location':
                            $resultStr = $this->receiceLocation($postObj); //接收位置信息
                            break;

                        case 'voice':
                            $resultStr = $this->receiveVoice($postObj);   //接收语音消息
                            break;

                        case 'video':
                            $resultStr = $this->receiveVideo($postObj);     //接收视频消息
                            break;

                        case 'link':
                            $resultStr = $this->receiveLink($postObj);     //接收链接消息
                            break;

                        default:
                            $resultStr = $this->transText('unknow msg type:'.$msgType);
                    }   

                    //回复给用户的消息写入日志
                    //$this->logger('T 
'.$resultStr);

                    //输出消息给用户
                    echo $resultStr;
            }else {
                echo "";
                exit;
            }
        }


        //接收事件消息
        private function receiveEvent($object){

            //临时定义一个变量，不同的事件发生时，给用户反馈不同的内容
            $content = "";

            //通过用户发过来的不同事件做一个处理
            switch($object->Event){
                //用户关注 触发事件
                case 'subscribe':

                    $content = "欢迎关注akira的测试账号";

                    //如果用户传来Eventkey事件，则扫描二维码
                    // $content .= (!empty($object->EventKey))?("
来自二维码场景".str):;
                    break;

                //用户取消关注
                case 'unsubscribe':

                    $content = "取消关注";

                    break;

            }

            return $this->transText($object,$content);

        }


        //接收图片消息
        public function receiveImage($object){
            
            $content = array("Media_Id"=>$object->MediaId);

            $result = $this->transImage($object,$content);
            
            return $result;
        }

        //接收位置消息
        public function receiceLocation($object){

            $content = "你发送的位置是,纬度:".$object->Location_X.";经度为:".$object->Location_Y;

            $result = $this->transText($object,$content); 
            
            return $result;
        }

        //得到语音消息
        public function receiveVoice($object){

            if(isset($object->Recognition) && !empty($object->Recognition)){

                //通过语言识别返回的文件放到fci函数分词后返回数组(多少个词)
                $text = $this->fci($object->Recognition);

                $content = "你刚才说的是：".implode(",",$text);

                $result = $this->transText($object,$content);
            }else{
                $content = array("MediaId"=>$object->MediaId);

                $result = $this->transVoice($object,$content);
            }

            return $result;
        }


        //获取视频消息
        public function receiveVideo($object){
            
        }


        //接收链接信息
        public function receiveLink($object){
            
        }



        //接收文本消息
        public function receiveText($object){

            //接收用户的文本内容，放到keyword这个变量中
            $keyword = trim($object->Content);

            //如果keyword中有文本两个字就回复给用户一个字符串
            if(strstr($keyword,'文本')){

                $content = '这是一个文本消息';

            }elseif(strstr($keyword,"单图文")){

                $content = array();

                $content[] = array("Title"=>"这是一个标题","Description"=>"1234","PicUrl"=>"http://mmbiz.qpic.cn/mmbiz/XImdqg47OccUzAbS32jSiaM72Tn2wyEvDLELLPoofiaKaeOAb9DC2F4srzBQCO7yqnSFaK8r5iaEQYguAicVj9XFSQ/640?wx_fmt=jpeg&wxfrom=5","Url"=>"http://mp.weixin.qq.com/s?__biz=MzAxNzUxOTczMg==&mid=207890753&idx=1&sn=4d097f8a06f89f940b1428ec6fc822c0#rd");

            }elseif(strstr($keyword,"图文")  || strstr($keyword,'多图文')){

                $content = array();

                $content[] = array("Title"=>"这是一个标题1","Description"=>"111","PicUrl"=>"http://mmbiz.qpic.cn/mmbiz/XImdqg47OccUzAbS32jSiaM72Tn2wyEvDLELLPoofiaKaeOAb9DC2F4srzBQCO7yqnSFaK8r5iaEQYguAicVj9XFSQ/640?wx_fmt=jpeg&wxfrom=5","Url"=>"http://mp.weixin.qq.com/s?__biz=MzAxNzUxOTczMg==&mid=207890753&idx=1&sn=4d097f8a06f89f940b1428ec6fc822c0#rd");
                $content[] = array("Title"=>"这是一个标题2","Description"=>"222","PicUrl"=>"http://mmbiz.qpic.cn/mmbiz/XImdqg47OccUzAbS32jSiaM72Tn2wyEvDLELLPoofiaKaeOAb9DC2F4srzBQCO7yqnSFaK8r5iaEQYguAicVj9XFSQ/640?wx_fmt=jpeg&wxfrom=5","Url"=>"http://mp.weixin.qq.com/s?__biz=MzAxNzUxOTczMg==&mid=207890753&idx=1&sn=4d097f8a06f89f940b1428ec6fc822c0#rd");
                $content[] = array("Title"=>"这是一个标题3","Description"=>"333","PicUrl"=>"http://mmbiz.qpic.cn/mmbiz/XImdqg47OccUzAbS32jSiaM72Tn2wyEvDLELLPoofiaKaeOAb9DC2F4srzBQCO7yqnSFaK8r5iaEQYguAicVj9XFSQ/640?wx_fmt=jpeg&wxfrom=5","Url"=>"http://mp.weixin.qq.com/s?__biz=MzAxNzUxOTczMg==&mid=207890753&idx=1&sn=4d097f8a06f89f940b1428ec6fc822c0#rd");
                $content[] = array("Title"=>"这是一个标题4","Description"=>"444","PicUrl"=>"http://mmbiz.qpic.cn/mmbiz/XImdqg47OccUzAbS32jSiaM72Tn2wyEvDLELLPoofiaKaeOAb9DC2F4srzBQCO7yqnSFaK8r5iaEQYguAicVj9XFSQ/640?wx_fmt=jpeg&wxfrom=5","Url"=>"http://mp.weixin.qq.com/s?__biz=MzAxNzUxOTczMg==&mid=207890753&idx=1&sn=4d097f8a06f89f940b1428ec6fc822c0#rd");

            }elseif(strstr($keyword,"音乐")){

                $content = array("Title"=>"歌曲","Description"=>"nice的一逼","MusicUrl"=>"http://akira.weixin-sandbox.ciicgat.com/public/bcjl.mp3","HQMusicUrl"=>"http://akira.weixin-sandbox.ciicgat.com/public/bcjl.mp3");

            }elseif(strstr($keyword,"抽奖")){

                $content =  $this->get_authorize_url(CJURL,'1');

            }
            else{

                $content = "akira".date('Y-m-d H:i:s')."技术支持";
            
            }

            //是数组,则为图文
            if(is_array($content)){

                if(isset($content[0])){

                    //第一张图有PicUrl，为单图文
                    $res = $this->transNews($object,$content);

                }elseif(isset($content['MusicUrl'])){

                    $res = $this->transMusic($object,$content);

                }
            
            }else{
                //$keyword 你输入的文本
                //$object->FromUserName
                //调用一个方法，将openid和你输入的文本传入，使用这个函数处理
                $this->getUserInfo($object->FromUserName,$keyword);

                $res = $this->transText($object,$content);
                
            }

            return $res;
        }


        //回复语音消息
        public function transVoice($object,$voice){

            $xmlTpl = "<xml>
<ToUserName><![CDATA[%s]]></ToUserName>
<FromUserName><![CDATA[%s]]></FromUserName>
<CreateTime>%s</CreateTime>
<MsgType><![CDATA[voice]]></MsgType>
<Voice>
<MediaId><![CDATA[%s]]></MediaId>
</Voice>
</xml>";

            $result = sprintf($xmlTpl,$object->FromUserName,$object->ToUserName,time(),$voice['MediaId']);

            return $result;
        }


       //回复图片消息
       public function transImage($object,$image){

               $xmlTpl = "<xml>
<ToUserName><![CDATA[%s]]></ToUserName>
<FromUserName><![CDATA[%s]]></FromUserName>
<CreateTime>%s</CreateTime>
<MsgType><![CDATA[image]]></MsgType>
<Image>
<MediaId><![CDATA[%s]]></MediaId>
</Image>
</xml>";
            $result = sprintf($xmlTpl,$object->FromUserName,$object->ToUserName,time(),$object->MediaId);

            return $result;

        }


        //回复音乐消息
        public function transMusic($object,$music){

            $xmlTpl = "<xml>
<ToUserName><![CDATA[%s]]></ToUserName>
<FromUserName><![CDATA[%s]]></FromUserName>
<CreateTime>%s</CreateTime>
<MsgType><![CDATA[music]]></MsgType>
<Music>
<Title><![CDATA[%s]]></Title>
<Description><![CDATA[%s]]></Description>
<MusicUrl><![CDATA[%s]]></MusicUrl>
<HQMusicUrl><![CDATA[%s]]></HQMusicUrl>
</Music>
</xml>";

            $re = sprintf($xmlTpl,$object->FromUserName,$object->ToUserName,time(),$music['Title'],$music['Description'],$music['MusicUrl'],$music['HQMusicUrl']);
        
            return $re;
        }


        //做单图文的相应消息
        public function transNews($object,$newsArray){
            
            if(!is_array($newsArray)){
                return '';
            }

            $itemTpl = "<item>
<Title><![CDATA[%s]]></Title> 
<Description><![CDATA[%s]]></Description>
<PicUrl><![CDATA[%s]]></PicUrl>
<Url><![CDATA[%s]]></Url>
</item>
";

            $item_str = "";

            foreach($newsArray as $item){
                $item_str .= sprintf($itemTpl,$item['Title'],$item['Description'],$item['PicUrl'],$item['Url']);
            }


            $xmlTpl = "<xml>
<ToUserName><![CDATA[%s]]></ToUserName>
<FromUserName><![CDATA[%s]]></FromUserName>
<CreateTime>%s</CreateTime>
<MsgType><![CDATA[news]]></MsgType>
<ArticleCount>%s</ArticleCount>
<Articles>
    $item_str
</Articles>
</xml>";
            
            return sprintf($xmlTpl,$object->FromUserName,$object->ToUserName,time(),count($newsArray));

        }



        //向用户传输文本
        public function transText($object,$content){

            $xmlTpl = "<xml>
<ToUserName><![CDATA[%s]]></ToUserName>
<FromUserName><![CDATA[%s]]></FromUserName>
<CreateTime>%s</CreateTime>
<MsgType><![CDATA[text]]></MsgType>
<Content><![CDATA[%s]]></Content>
</xml>";

            $result = sprintf($xmlTpl,$object->FromUserName,$object->ToUserName,time(),$content);

            return  $result;
        }


        /*写日志
        @param string $log_content  传日志的内容
        */
        public function logger($log_content){

            //日志大小
            $max_file_size = 10000;

            $log_filename = 'log.xml';

            if(file_exists($log_filename) && abs(filesize($log_filename)) > $max_file_size){
                @unlink($log_filename);
            }
            
            //写入日志,追加写日志
            file_put_contents($log_filename,date('H:i:s').' '.$log_content.'
',FILE_APPEND);

        }


    }



?>

对于数据抓包的处理很多时候决定了传输的定性

接收普通消息

http://mp.weixin.qq.com/wiki/10/79502792eef98d6e0c6e1739da387346.html

接收事件推送

http://mp.weixin.qq.com/wiki/2/5baf56ce4947d35003b86a9805634b1e.html