本文将带你了解微信开发17----自定义菜单的事件推送，响应菜单的CLICK，希望本文对大家学微信有所帮助。

废话不多说，index.php   代码如下所示：

valid();//添加响应请求的语句$wechatObj->responseMsg();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)){                /*   libxml_disable_entity_loader is to prevent XML eXternal Entity   Injection,                   the best   way is to check the validity of xml by yourself */                // 使用simplexml技术对xml进行解析                 //   libxml_disable_entity_loader(true), 是从安全性考虑，为了防止xml外部注入，                //只对xml内部实体内容进行解析                  libxml_disable_entity_loader(true);                //加载 postStr 字符串                  $postObj =   simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);                file_put_contents('abc.log',   "\r\n\r\n". $postStr, FILE_APPEND);                $fromUsername =   $postObj->FromUserName;                  file_put_contents('abc.log', "\r\n\r\n". $fromUsername,   FILE_APPEND);                  $toUsername = $postObj->ToUserName;                file_put_contents('abc.log',   "\r\n\r\n". $toUsername, FILE_APPEND);                $keyword =   trim($postObj->Content);                  $time = time();                  global $tmp_arr;                  //根据接收到的消息类型，来进行分支处理(switch)                  switch($postObj->MsgType)                {                    case 'event':                        if($postObj->Event   == 'subscribe')                          {                                                          $contentStr = "欢迎关注leigood微信测试号噢";                            $resultStr =   sprintf($tmp_arr['text'], $fromUsername, $toUsername, $time,   $contentStr);                              echo $resultStr;                         }                                                  //响应用户的点击事件                          if($postObj->Event == 'CLICK'){                              if($postObj->EventKey == 'V1001_TODAY_MUSIC'){   //自定义菜单里面有很多个，这里key是自定义的                                  //这里主要写自己想要的业务逻辑                                $contentStr =   "夺命雷公狗欢迎您来到编程世界";                                $resultStr =   sprintf($tmp_arr['text'], $fromUsername, $toUsername, $time,   $contentStr);                                  echo $resultStr;                             }                        }                                                  break;                    case   'text': //回复文本模块                          //必须是以“图片”开头，后面并且是以数字结尾                          if(preg_match("/^图片([0-9][0-9]*)$/u",$keyword,$matches)){                            $connect = mysql_connect('localhost','root','root');                              mysql_select_db('wxdb',$connect);                            mysql_query('set   names utf8');                              $matches = array();                              preg_match("/^图片([0-9][0-9]*)$/u",$keyword,$matches);                             $sql =   "select media_id from keep_image_uploads where   id=$matches[1]";                            $res =   mysql_query($sql,$connect);                              if($row = mysql_fetch_assoc($res)){                                  //先取出么media_id                                $media_id =   $row['media_id'];                                $resultStr =   sprintf($tmp_arr['image'], $fromUsername, $toUsername, $time,   $media_id);                                  echo $resultStr;                            }else{                                $contentStr =   '该图片还没上传噢！';                                  $resultStr = sprintf($tmp_arr['text'], $fromUsername, $toUsername,   $time, $contentStr);                                echo   $resultStr;                              }                        }else   if($keyword == '十八摸'){                            $title = '十八摸';   //标题                              $Description = '十八摸，您懂得~~~~~'; //音乐描述                            $MusicUrl =   "//weixin.showtp.com/music/gq1.mp3"; //音乐链接                            $HQMusicUrl =   "//weixin.showtp.com/music/gq1.mp3"; //高质量音乐链接                                                          $resultStr = sprintf($tmp_arr['music'], $fromUsername, $toUsername,   $time, $title,$Description,$MusicUrl,$HQMusicUrl);                            echo   $resultStr;                          }else if($keyword == '初夜泪流'){                            $title = '初夜泪流';   //标题                              $Description = '初夜泪流，时间宝贵的夜'; //音乐描述                            $MusicUrl =   "//weixin.showtp.com/music/gq2.mp3"; //音乐链接                            $HQMusicUrl =   "//weixin.showtp.com/music/gq2.mp3"; //高质量音乐链接                                                          $resultStr = sprintf($tmp_arr['music'], $fromUsername, $toUsername,   $time, $title,$Description,$MusicUrl,$HQMusicUrl);                            echo   $resultStr;                          }else if($keyword == '头条新闻'){                            $Title =   '百度PK谷歌';                              $Description = '在国际舞台上百度和谷歌的pk究竟相差多远呢？'; //图文消息描述                            $PicUrl =   "//weixin.showtp.com/image/logo.png";                               //图片链接，支持JPG、PNG格式，较好的效果为大图360*200，小图200*200                            $Url =   "//www.cyzone.cn/a/20150225/270130.html"; //点击图文消息跳转链接                            $resultStr =   sprintf($tmp_arr['singlenews'], $fromUsername, $toUsername, $time, $Title,   $Description, $PicUrl, $Url);                            echo   $resultStr;                          }else if($keyword == '新闻'){                              //处理返回多条图文消息，但不能超过十条                            $news_arr =   array(                                  'news1'=>array('title'=>'百度新闻','Description'=>'大陆百度很牛逼噢',                                      'PicUrl'=>'//weixin.showtp.com/image/logo.png',                                      'Url'=>'//www.baidu.com'),                                  'news2'=>array('title'=>'新浪新闻','Description'=>'大陆百度很牛逼噢',                                      'PicUrl'=>'//weixin.showtp.com/image/news1.png',                                      'Url'=>'//www.sina.com.cn'),                                  'news3'=>array('title'=>'腾讯新闻','Description'=>'大陆百度很牛逼噢',                                      'PicUrl'=>'//weixin.showtp.com/image/news2.png',                                    'Url'=>'//www.qq.com'),                                  'news4'=>array('title'=>'搜狐新闻','Description'=>'大陆百度很牛逼噢',                                    'PicUrl'=>'//weixin.showtp.com/image/news3.png',                                      'Url'=>'//www.sohu.com')                                );                                                                  $resultStr = sprintf($tmp_arr['newses'], $fromUsername, $toUsername,   $time,                                   $news_arr['news1']['title'],                                  $news_arr['news1']['Description'],                                  $news_arr['news1']['PicUrl'],                                  $news_arr['news1']['Url'],                                                                  $news_arr['news2']['title'],                                  $news_arr['news2']['Description'],                                  $news_arr['news2']['PicUrl'],                                  $news_arr['news2']['Url'],                                                                  $news_arr['news3']['title'],                                $news_arr['news3']['Description'],                                  $news_arr['news3']['PicUrl'],                                  $news_arr['news3']['Url'],                                                                  $news_arr['news4']['title'],                                  $news_arr['news4']['Description'],                                  $news_arr['news4']['PicUrl'],                                  $news_arr['news4']['Url']                                                                  );                              echo $resultStr;                                                  }else{                              $contentStr = '您输入的格式有误';                            $resultStr =   sprintf($tmp_arr['text'], $fromUsername, $toUsername, $time,   $contentStr);                              echo $resultStr;                          }                          break;                    case   'image': //处理用户上传图片                          $media_id = $postObj -> MediaId; //获取到用户上传的图片的mediaid                        $resultStr =   sprintf($tmp_arr['image'], $fromUsername, $toUsername, $time, $media_id);                        echo $resultStr;                                                  //将图片保存到本地服务器的文件系统                        //1.先给图片创建一个名字                        $image_file_name =   time().'.jpg';                          //2.获取该图片的内容                          $image_file = file_get_contents($postObj->PicUrl);                        //3.保存到本地服务器的文件系统                          //提醒：一定要保证您创建的文件夹是www用户可读可写，否则无法保存该图片到文件夹下                          file_put_contents("./uploadimage/".$image_file_name,$image_file);                                                  //将图片的路径和相关信息入库                          //1.创建一张表                          //2.链接mysql数据库，并且添加图片信息                        $connect =   mysql_connect('localhost','root','root');                          mysql_select_db('wxdb',$connect);                        mysql_query('set   names utf8');                          $media_path = "./uploadimage/".$image_file_name; //路径                        $sql = "insert   into keep_image_uploads (id,openid,media_id,media_path)   values(NULL,'{$fromUsername}','{$media_id}','{$media_path}')";                          mysql_query($sql,$connect);                        break;                    case 'voice':   //处理用户上传语言的业务逻辑                          $media_id = $postObj -> MediaId; //获取media_id的id号                        $resultStr =   sprintf($tmp_arr['voice'], $fromUsername, $toUsername, $time,   $media_id);                        echo   $resultStr;                          break;                    case   'location': //处理用户上传的地理位置信息                        $Location_X =   $postObj -> Location_X; //获取上传地理位置的纬度                        $Location_Y =   $postObj -> Location_Y; //获取上传地地理位置经度                        $contentStr =   "您上报的地理位置是:\n经度是：{$Location_Y} \n纬度是: {$Location_X}";                        $resultStr =   sprintf($tmp_arr['text'], $fromUsername, $toUsername, $time,   $contentStr);                          echo $resultStr;                          break;                    case   'link': //接收并回复链接信息                          //获取到用户上传的链接信息                          $Title = $postObj -> Title;                        $Url = $postObj   -> Url;                          $contentStr = "{$Title}";                        $resultStr =   sprintf($tmp_arr['text'], $fromUsername, $toUsername, $time,   $contentStr);                          echo $resultStr;                          break;                                          }        }else {            echo "";            exit;        }      }            private function   checkSignature()    {        // you must define TOKEN by yourself        if (!defined("TOKEN"))   {            throw new Exception('TOKEN   is not defined!');        }                $signature =   $_GET["signature"];          $timestamp = $_GET["timestamp"];        $nonce = $_GET["nonce"];                        $token = TOKEN;        $tmpArr = array($token, $timestamp,   $nonce);        // use SORT_STRING rule        sort($tmpArr, SORT_STRING);        $tmpStr = implode( $tmpArr );        $tmpStr = sha1( $tmpStr );                if( $tmpStr == $signature   ){            return true;        }else{            return false;        }      }}?>

关键代码也就这么一点，而且，

在这里面其实可以推送歌曲之类的都是没有任何问题的

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