php微信公众号开发

r囧r小猫 2022-06-01 04:40 204阅读 0赞

一、Introduction

微信公众号是一个平台。目前，提供了4类帐号，订阅号、服务号、小程序、企业微信。具体区别在官网有说明。

二、使用接口测试号开发

1.        申请接口测试号

平台提供了接口测试号。到公众平台开发者文档，可以申请测试号开发。申请后提供appID和appsecret等，以供开发使用。

2.        access\_token

access\_token是公众号的全局唯一接口调用凭证，调用接口时都需使用access\_token，以提高安全性。access\_token的请求方式，通过客户端，或通过企业服务器。获取方式三种，

第一种，通过浏览器访问url，https请求方式: GET

https://api.weixin.qq.com/cgi-bin/token?grant\_type=client\_credential&appid=APPID&secret=APPSECRET

第二种，通过微信平台获取，在开发者文档获取access\_token，点击使用网页调试工具调试该接口；

第三种，编写php程序来获取，使用cURL函数库，client  url library。使用curl，先在php.ini开启curl的扩展。

<?php
    
    /**
    
     * 使用curl函数
    
     */
    
    function_request($curl, $https=true, $method='get', $data=null)
    
    {
    
             //初始化
    
             $ch = curl_init();
    
             //设置url
    
             curl_setopt($ch, CURLOPT_URL, $curl);
    
             //设置不需要头信息
    
             curl_setopt($ch, CURLOPT_HEADER,false);
    
             //至获取页面内容，但不输出
    
             curl_setopt($ch, CURLOPT_RETURNTRANSFER,true);
    
             if($https)
    
             {
    
                       //设置不做服务器认证
    
                       curl_setopt($ch,CURLOPT_SSL_VERIFYPEER, false);
    
                       //不做客户端认证
    
                       curl_setopt($ch,CURLOPT_SSL_VERIFYHOST, false);
    
             }
    
             if($method == 'post')
    
             {
    
                       //设置请求方式为post
    
                       curl_setopt($ch,CURLOPT_POST, true);
    
                       //设置请求数据
    
                       curl_setopt($ch,CURLOPT_POSTFIELDS, $data);
    
             }
    
             //执行并接收输出
    
             $str = curl_exec($ch);
    
             //释放资源
    
             curl_close($ch);
    
             return $str;
    
    }
    
    echo _request("https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=wx49119aeb8923abfd&secret=96e13016d1cb24026545e5ed7c133fac");
    
    /**
    
     * 获取access_token
    
     */
    
    function_getAccesstoken()
    
    {
    
             $file = './accessToken.txt';
    
             //判断文件是否存在
    
             if(file_exists($file))
    
             {
    
                       $content =file_get_contents($file);
    
                       //json解码文件的内容
    
                       $content =json_decode($content);
    
                       //判断是否过期
    
                       if(time() - filemtime($file)< $content->expires_in)
    
                       {
    
                                return$content->access_token;
    
                       }                
    
             }
    
             $content =_request("https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=wx49119aeb8923abfd&secret=96e13016d1cb24026545e5ed7c133fac");
    
             file_put_contents($file, $content);
    
             $content = json_decode($content);
    
             return $content->access_token;
    
    }
    
    
    
    echo_getAccesstoken();

3.        使用php封装一个获取access\_token的工具类

<?php
    
    /**
    
     * 定义微信工具类
    
     */
    
    class WeChat
    
    {
    
             //appid
    
             private $_appid;
    
             //appsecret
    
             private $_appsecret;
    
             //token
    
             private $_token;
    
    
    
             /**********************************************************/
    
    
    
             /**
    
              * 构造函数
    
              */
    
             public function __construct($appid,$appsecret, $token)
    
             {
    
                       $this->_appid = $appid;
    
                       $this->_appsecret =$appsecret;
    
                       $this->_token = $token;
    
             }
    
    
    
             /**
    
              * 使用curl函数抓取url内容
    
              */
    
             private function _request($curl,$https=true, $method='get', $data=null)
    
             {
    
                       //初始化
    
                       $ch = curl_init();
    
                       //设置url
    
                       curl_setopt($ch, CURLOPT_URL,$curl);
    
                       //设置不需要头信息
    
                       curl_setopt($ch,CURLOPT_HEADER, false);
    
                       //至获取页面内容，但不输出
    
                       curl_setopt($ch,CURLOPT_RETURNTRANSFER, true);
    
                       if($https)
    
                       {
    
                                //设置不做服务器认证
    
                                curl_setopt($ch,CURLOPT_SSL_VERIFYPEER, false);
    
                                //不做客户端认证
    
                                curl_setopt($ch,CURLOPT_SSL_VERIFYHOST, false);
    
                       }
    
                       if($method == 'post')
    
                       {
    
                                //设置请求方式为post
    
                                curl_setopt($ch,CURLOPT_POST, true);
    
                                //设置请求数据
    
                                curl_setopt($ch,CURLOPT_POSTFIELDS, $data);
    
                       }
    
                       //执行并接收输出
    
                       $str = curl_exec($ch);
    
                       //释放资源
    
                       curl_close($ch);
    
                       return $str;
    
             }
    
    
    
             /**
    
              * 获取access_token
    
              */
    
             private function _getAccesstoken()
    
             {
    
                       $file = './accessToken.txt';
    
                       //判断文件是否存在
    
                       if(file_exists($file))
    
                       {
    
                                $content =file_get_contents($file);
    
                                //json解码文件的内容
    
                                $content =json_decode($content);
    
                                //判断是否过期
    
                                if(time() -filemtime($file) < $content->expires_in)
    
                                {
    
                                          return $content->access_token;
    
                                }                
    
                       }
    
                       $content =_request("https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=".$this->_appid."&secret=".$this->_appsecret);
    
                       file_put_contents($file,$content);
    
                       $content = json_decode($content);
    
                       return$content->access_token;
    
             }
    
    
    
    }

4.        生成带参数的二维码

QR Code，Quick  Response Code。用于用户渠道推广分析和用户帐号绑定等场景。分为临时二维码和永久二维码。获取的步骤，创建二维码ticket，凭借ticket到指定url获取二维码。

获取ticket

在工具类中添加获取ticket的方法

/**
    
              * 获取ticket
    
              * expires_seconds,int,二维码的有效期，单位s;
    
              * type,str,二维码的类型，永久或临时;
    
              * scene,int,使用二维码场景编号;
    
              */
    
             public function_getTicket($expires_seconds = 604800, $type = "temp", $scene = 1)
    
             {
    
                       if($type == "temp")
    
                       {
    
                                $data ='{"expire_seconds": '.$expires_seconds.', "action_name":"QR_STR_SCENE", "action_info": {"scene":{"scene_str": "'.$scene.'"}}}';
    
    
    
                                return$this->_request("https://api.weixin.qq.com/cgi-bin/qrcode/create?access_token=".$this->_getAccesstoken(),true, "post", $data);
    
                       }
    
                       else
    
                       {
    
                                $data ='{"action_name": "QR_LIMIT_STR_SCENE","action_info": {"scene": {"scene_str":"'.$scene.'"}}}';
    
                                return$this->_request("https://api.weixin.qq.com/cgi-bin/qrcode/create?access_token=".$this->_getAccesstoken(),true, "post", $data);
    
                       }
    
    
    
             }

通过ticket获取二维码

在类中添加获取二维码的方法

/**
    
              * 获取二维码的方法
    
              */
    
             public function_getQRCode($expires_seconds = '604800', $type = 'temp', $scene = 1)
    
             {
    
                       $content =$this->_getTicket($expires_seconds, $type, $scene);
    
                       $content =json_decode($content);
    
                       $ticket =$content->ticket;
    
                       $image =$this->_request("https://mp.weixin.qq.com/cgi-bin/showqrcode?ticket=".urlencode($ticket));
    
                       $file ="./".date("Y-m-d").'_'.$type.$scene.".jpg";
    
                       file_put_contents($file,$image);
    
                       return $image;
    
             }

测试获取二维码的方法

<?php
    
    define("APPID","wx49119aeb8923abfd");
    
    define("APPSECRET","96e13016d1cb24026545e5ed7c133fac");
    
    define("TOKEN","");
    
    require'./Wechat.class.php';
    
    header('Content-type:image/jpg');
    
    $wechat = newWeChat(APPID, APPSECRET, TOKEN);
    
    // echo $wechat->_getTicket($expires_seconds= 604800, $type = "yongjiu", $scene = 2);
    
    echo$wechat->_getQRCode(604800, 'temp', 5);

5.        接口配置

接入校验，就是微信服务器地址是否正确。在接收消息时，要验证消息真实性。

平台官网提供了验证的样本代码，可以修改token为自己需要的。

<?php
    
    /**
    
      * wechat php test
    
      * update time: 20141008
    
      */
    
    
    
    //define your token
    
    define("TOKEN","testwechat");//可以修改TOKEN
    
    $wechatObj = newwechatCallbackapiTest();
    
    $data = array();
    
    $data[] =$_SERVER['REMOTE_ADDR'];
    
    $data[] =$_SERVER['QUERY_STRING'];
    
    $file ='./server.log';
    
    //输出服务端信息，用于检测状态，如果无法写入文件，请修改父目录权限
    
    file_put_contents($file,$data);
    
    $wechatObj->valid();
    
    
    
    classwechatCallbackapiTest
    
    {
    
             public function valid()
    
        {
    
            $echoStr = $_GET["echostr"];
    
    
    
            //valid signature , option
    
            if($this->checkSignature()){
    
                     echo$echoStr;
    
                     exit;
    
            }
    
        }
    
    
    
        public function responseMsg()
    
        {
    
                       //get post data, May be dueto the different environments
    
                       $postStr =$GLOBALS["HTTP_RAW_POST_DATA"];
    
    
    
               //extractpost 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, SORT_STRING);
    
                       $tmpStr = implode( $tmpArr );
    
                       $tmpStr = sha1( $tmpStr );
    
                      
    
                       if( $tmpStr == $signature ){
    
                                return true;
    
                       }else{
    
                                return false;
    
                       }
    
             }
    
    }
    
    
    
    ?>

如果token能对的上，就配置成功。一次成功后，后续微信平台就知道了这个接口的使用者。除非更改了url或者token，可以再次验证。

为了便于通过类来管理，可以将样本提供的方法，复制到wechat的工具类中。那么，index.php不需要写这个类了。

然后在index.php中

<?php
    
    define("APPID","wx49119aeb8923abfd");
    
    define("APPSECRET","96e13016d1cb24026545e5ed7c133fac");
    
    define("TOKEN","testwechat");
    
    require("./WeChat.class.php");
    
    //header('Content-type:image/jpg');
    
    $wechat = newWeChat(APPID, APPSECRET, TOKEN);
    
    // echo$wechat->_getTicket($expires_seconds = 604800, $type = "yongjiu",$scene = 2);
    
    // echo$wechat->_getQRCode(604800, 'temp', 5);
    
    $wechat->valid();

6.        接收普通消息

普通消息分为文本消息、图片消息、语音消息、视频消息、地理位置消息、链接信息等。也是使用平台提供的模版，就是上述验证的第二个方法responseMsg()

<?php
    
    define("APPID","wx49119aeb8923abfd");
    
    define("APPSECRET","96e13016d1cb24026545e5ed7c133fac");
    
    define("TOKEN","testwechat");
    
    require("./WeChat.class.php");
    
    // header('Content-type:image/jpg');
    
    $wechat = newWeChat(APPID, APPSECRET, TOKEN);
    
    // echo$wechat->_getTicket($expires_seconds = 604800, $type = "yongjiu",$scene = 2);
    
    // echo$wechat->_getQRCode(604800, 'temp', 5);
    
    //$wechat->valid();//一次验证，可以延续使用，无需多次验证，除非验证url和token有更改
    
    $wechat->responseMsg();

这样客户端向在公众号发送内容后，就会得到回复

在responseMsg()方法中，$contentStr = "Welcome to wechat world!";

可以对客户发送的内容进行判断，回复不同的内容。

平台提供了回复不同的内容的xml的格式，可以直接使用。

MsgType属性是关于回复的内容的类型的。根据回复的类型进行不同的处理。

在wechat工具类中

/**
    
         * 回复客户端信息的方法
    
         */
    
       public function responseMsg()
    
        {
    
                       //get post data, May be dueto the different environments
    
                       $postStr =$GLOBALS["HTTP_RAW_POST_DATA"];
    
    
    
               //extractpost data
    
                       if (!empty($postStr)){
    
                   
    
                   $postObj= simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);
    
                   $file= './post.log';
    
                   file_put_contents($file,'['.date('Y-m-d H:i:s').']content:'.$postObj->MsgType.PHP_EOL, FILE_APPEND);
    
                switch ($postObj->MsgType) {
    
                            //文本类型
    
                            case'text':
    
                                  $this->_doText($postObj);
    
                                  break;
    
                            //图片
    
                            case'image':
    
                                  $this->_doImage($postObj);
    
                                  break;
    
                         //语音
    
                         case 'voice':
    
                                  $this->_doVoice($postObj);
    
                                  break;
    
                         //视频
    
                         case 'video':
    
                                  $this->_doVideo($postObj);
    
                                  break;
    
                         //定位信息
    
                         case 'location':
    
                                  $this->_doLocation($postObj);
    
                                  break;
    
                         //小视频
    
                         case 'shortvideo':
    
                                  $this->_doShortVideo($postObj);
    
                                  break;
    
                         //链接信息
    
                         case 'link':
    
                                  $this->_doLink($postObj);
    
                                  break;
    
                      default:exit;
    
                }
    
            }else {
    
                     echo"";
    
                     exit;
    
            }
    
        }
    
                      
    
        /**
    
         * 处理文本内容的回复
    
         */
    
             private function _doText($postObj)
    
             {
    
                       $fromUsername =$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 ))
    
            {
    
                     $contentStr= "Welcome to wessssssssssssschat world!";
    
                        if($keyword=="看看")
    
                        {
    
                                 $contentStr= "没sssss有";
    
                        }
    
                        if($keyword== "走了")
    
                        {
    
                                 $contentStr= "有ssss了";
    
                        }
    
                        $msgType= "text";
    
                    
    
                     $resultStr= sprintf($textTpl, $fromUsername, $toUsername, $time, $msgType, $contentStr);
    
                     echo$resultStr;
    
            }
    
            exit;
    
             }
    
    
    
             /**
    
         * 处理图片内容的回复
    
         */
    
             private function _doImage($postObj)
    
             {                
    
                       $file = './post.log';
    
               $fromUsername= $postObj->FromUserName;
    
            $toUsername = $postObj->ToUserName;
    
            $keyword = trim($postObj->Content);
    
            $time = time();
    
                       //使用被动回复消息的模版
    
                       $textTpl = "<xml>
    
                                                   <ToUserName><![CDATA[%s]]></ToUserName>
    
                                                   <FromUserName><![CDATA[%s]]></FromUserName>
    
                                                   <CreateTime>%s</CreateTime>
    
                                                   <MsgType><![CDATA[%s]]></MsgType>
    
                                                   <Content><![CDATA[%s]]></Content>
    
                                                   </xml>";
    
                       $contentStr = '您发送的图片在-->'.$postObj->PicUrl.'<--';
    
                    $msgType= "text";
    
                       $str = sprintf($textTpl,$fromUsername, $toUsername, $time, $msgType, $contentStr);
    
                       echo $str;
    
                       file_put_contents($file,'['.date('Y-m-d H:i:s').']content:'.$str.PHP_EOL, FILE_APPEND);
    
                       exit;
    
             }

7.        接收事件推送

事件推送的类型有关注/取消事件，扫描带参数二维码，上报地理位置，自定义菜单，点击菜单，点击菜单取消消息，点击菜单跳转链接等。

在回复方法中添加处理event类型的分支

switch($postObj->MsgType) {
    
         //事件类型
    
         case 'event':
    
             $this->_doEvent($postObj);
    
             break;
    
             ……
    
    }

/**
    
         * 处理事件类型
    
         */
    
             private function _doEvent($postObj)
    
             {
    
                       switch($postObj->Event)
    
                       {
    
                                //订阅
    
                                case 'subscribe':
    
                                         $this->_doSubscribe($postObj);
    
                                         break;
    
                                //取关
    
                                case 'unsubscribe':
    
                                         $this->_doUnsubscribe($postObj);
    
                                         break;
    
                                default:;
    
    
    
                       }
    
             }
    
    
    
             /**
    
              * 处理订阅事件
    
              */
    
             private function _doSubscribe($postObj)
    
             {
    
                       $fromUsername =$postObj->FromUserName;
    
            $toUsername = $postObj->ToUserName;
    
            $keyword = trim($postObj->Content);
    
            $time = time();
    
                       //使用被动回复消息的模版
    
                       $textTpl = "<xml>
    
                                                   <ToUserName><![CDATA[%s]]></ToUserName>
    
                                                   <FromUserName><![CDATA[%s]]></FromUserName>
    
                                                   <CreateTime>%s</CreateTime>
    
                                                   <MsgType><![CDATA[%s]]></MsgType>
    
                                                   <Content><![CDATA[%s]]></Content>
    
                                                   </xml>";
    
                       $contentStr = '欢迎订阅php1';
    
                    $msgType= "text";
    
                       $str = sprintf($textTpl,$fromUsername, $toUsername, $time, $msgType, $contentStr);
    
                       echo $str;
    
                       exit;
    
             }
    
    
    
             /**
    
              * 处理取关事件
    
              */
    
             private function _doUnsubscribe($postObj)
    
             {
    
                       exit;
    
             }

8.        自定义菜单

为了丰富用户的操作，可以添加菜单，自定义操作。

1)        创建菜单

使用微信平台的测试工具，可以直接创建菜单。

打开网页测试工具。选择接口类型为自定义菜单，接口列表为menu/create，body可以复制提供的样板，根据实际做修改：

{
    
        "button": [
    
            {
    
                "type":"click",
    
                "name": "今日歌曲",
    
                "key":"V1001_TODAY_MUSIC"
    
            },
    
            {
    
                "name": "菜单",
    
                "sub_button": [
    
                    {
    
                        "type":"view",
    
                        "name": "搜索",
    
                        "url":"http://www.soso.com/"
    
                    },
    
                    {
    
                        "type":"click",
    
                        "name": "赞一下我们",
    
                        "key":"V1001_GOOD"
    
                    }
    
                ]
    
            }
    
        ]
    
    }

检查问题就可以创建菜单，取关后重新关注，可以查看效果。

也可通过接口添加菜单

/**
    
         * 创建菜单的方法
    
         */
    
        public function _createMenu($menu)
    
        {
    
                 $url="https://api.weixin.qq.com/cgi-bin/menu/create?access_token=".$this->_getAccesstoken();
    
                 $result= $this->_request($url, true, 'post', $menu);
    
                 $result= json_decode($result);
    
                 if($result->errcode== 0)
    
                 {
    
                           $info= '菜单创建成功';
    
                 }
    
                 else
    
                 {
    
                           $info= '服务器异常，请联系管理员';
    
                 }
    
                 return$info;
    
    }

调用创建菜单的方法

<?php
    
    define("APPID","wx49119aeb8923abfd");
    
    define("APPSECRET","96e13016d1cb24026545e5ed7c133fac");
    
    define("TOKEN","testwechat");
    
    require("./WeChat.class.php");
    
    //header('Content-type:image/jpg');
    
    header('content-type:text/html;charset=utf-8');
    
    $wechat = newWeChat(APPID, APPSECRET, TOKEN);
    
    $menu = '{
    
                           "button": [
    
                               {
    
                                   "type":"click",
    
                                   "name": "今日歌曲",
    
                                   "key":"V1001_TODAY_MUSIC"
    
                               },
    
                               {
    
                                   "name": "游戏",
    
                                   "sub_button": [
    
                                       {
    
                                           "type":"view",
    
                                           "name": "吃货大作战",
    
                                           "url":"http://my.59600.com/pc/webgame/?id=9696003&name=%E5%90%83%E8%B4%A7%E5%A4%A7%E4%BD%9C%E6%88%98"
    
                                       },
    
                                       {
    
                                           "type":"click",
    
                                           "name": "赞一下我们",
    
                                           "key":"V1001_GOOD"
    
                                       }
    
                                   ]
    
                               }
    
                           ]
    
                       }';
    
    echo$wechat->_createMenu($menu);

2)        删除菜单

可以在这个页面，接口列表，选择为menu/delete，检查问题就可以删除菜单。

也可以使用平台提供删除菜单的接口

/**
    
         * 删除菜单的方法
    
         */
    
        public function _deleteMenu()
    
        {
    
                 $url= "https://api.weixin.qq.com/cgi-bin/menu/delete?access_token=".$this->_getAccesstoken();
    
                 $result= $this->_request($url);
    
                 $result= json_decode($result);
    
                 if($result->errcode== 0)
    
                 {
    
                           $info= '菜单删除成功';
    
                 }
    
                 else
    
                 {
    
                           $info= '服务器异常，请联系管理员';
    
                 }
    
                 $file= "./deletemenu.txt";
    
                 file_put_contents($file,  '['.date('Y-m-dH:i:s').']content:'.$info.PHP_EOL, FILE_APPEND);
    
                 return$info;
    
        }

3)        查询菜单

使用自定义菜单内的查询接口。返回的是json形式的字符串。

/**
    
         * 查询菜单的方法
    
         */
    
        public function _queryMenu()
    
        {
    
                 $url="https://api.weixin.qq.com/cgi-bin/menu/get?access_token=".$this->_getAccesstoken();
    
                 $menu= $this->_request($url);
    
                 $file= "./menu.txt";
    
                 file_put_contents($file,  '['.date('Y-m-dH:i:s').']content:'.$menu.PHP_EOL, FILE_APPEND);
    
                 return$menu;
    
    }

4)        发送图文信息（被动）

当用户点击了某个菜单选项后，可以被动向用户发送图文信息。当用户点击了菜单后，会触发自定义菜单事件，平台会把点击事件推送给开发者，注意的是，点击菜单弹出子菜单，不会产生上报。推送的xml数据包中含有参数Event和EventKey，即创建按钮时设置的按钮的type和key。点击的哪个按钮，就推送这个按钮的type和key，然后被动发送图文信息等。

在处理事件的方法中添加处理点击事件的分支。

//鼠标点击事件
    
             case 'CLICK':
    
                       $this->_doClick($postObj);
    
                       break;

创建点击的方法

/**
    
              * 处理点击事件
    
              */
    
             private function _doClick($postObj)
    
             {
    
                       $eventKey =$postObj->EventKey;
    
                       if($eventKey == 'news')
    
                       {
    
                                $fromUsername =$postObj->FromUserName;
    
                    $toUsername = $postObj->ToUserName;
    
                    $keyword = trim($postObj->Content);
    
                    $time = time();
    
                                //使用被动回复消息的模版
    
                                $textTpl ="<xml>
    
                                                            <ToUserName><![CDATA[%s]]></ToUserName>
    
                                                            <FromUserName><![CDATA[%s]]></FromUserName>
    
                                                            <CreateTime>%s</CreateTime>
    
                                                            <MsgType><![CDATA[%s]]></MsgType>
    
                                                            <ArticleCount>%s</ArticleCount>
    
                                                            <Articles>
    
                                                                     %s
    
                                                            </Articles>
    
                                                            </xml>";
    
                                $itemTpl ="<item>
    
                                                                     <Title><![CDATA[%s]]></Title>
    
                                                                     <Description><![CDATA[%s]]></Description>
    
                                                                     <PicUrl><![CDATA[%s]]></PicUrl>
    
                                                                     <Url><![CDATA[%s]]></Url>
    
                                                            </item>";
    
                                $items = array(
    
                                         array(
    
                                                   'title'=>'阿森纳叛温格',
    
                                                   'desc'=>'提起阿德巴约，阿森纳评温格虚伪，阿森纳无情。还表示自己最喜欢的教练是穆里尼奥，他永远爱穆帅。',
    
                                                   'picurl'=>'http://n.sinaimg.cn/sports/transform/w650h364/20180119/G4LB-fyqtwzu6103615.jpg',
    
                                                   'url'=>'http://sports.sina.com.cn/g/pl/2018-01-19/doc-ifyquptv7864181.shtml?cre=tianyi&mod=pcspth&loc=9&r=25&doct=0&rfunc=6&tj=none&tr=1',
    
                                                   ),
    
                                         array(
    
                                                   'title'=>'桑切斯去曼德的',
    
                                                   'desc'=>'桑切斯加盟曼联的转会已经进入倒计时，阿森纳主帅温格也亲自承认：“桑切斯的交易很可能会发生。料地投奔昔日恩师、现任曼城主帅瓜迪奥拉。对此，《太阳报》首席评论员尼尔',
    
                                                   'picurl'=>'http://n.sinaimg.cn/sports/transform/w650h457/20180119/Ofj1-fyqtwzu6235171.jpg',
    
                                                   'url'=>'http://sports.sina.com.cn/g/pl/2018-01-19/doc-ifyqtwzu6240517.shtml?cre=tianyi&mod=pcspth&loc=5&r=0&doct=0&rfunc=6&tj=none&tr=1',
    
                                                   ),
    
                                );
    
                                foreach ($items as$k => $v)
    
                                {
    
                                         $itemContent.= sprintf($itemTpl, $v['title'], $v['desc'], $v['picurl'], $v['url']);
    
                                }
    
                            $msgType ="news";
    
                                $str =sprintf($textTpl, $fromUsername, $toUsername, $time, $msgType, count($items),$itemContent);
    
                                echo $str;
    
                                exit;
    
                       }
    
             }

9.        定位信息的处理

在接收普通消息中，有地理位置消息。这个消息中有发送点的经纬度信息。在处理类型中添加处理地理位置的分支。并创建对应的方法。

/**
    
              * 处理地理位置
    
              */
    
             private function _doLocation($postObj)
    
             {
    
                       $file = './post.log';
    
               $fromUsername = $postObj->FromUserName;
    
            $toUsername = $postObj->ToUserName;
    
            $keyword = trim($postObj->Content);
    
            $time = time();
    
                       //使用被动回复消息的模版
    
                       $textTpl = "<xml>
    
                                                   <ToUserName><![CDATA[%s]]></ToUserName>
    
                                                   <FromUserName><![CDATA[%s]]></FromUserName>
    
                                                   <CreateTime>%s</CreateTime>
    
                                                   <MsgType><![CDATA[%s]]></MsgType>
    
                                                   <Content><![CDATA[%s]]></Content>
    
                                                   </xml>";
    
                       $contentStr = '您所在的地理位置为：N '.$postObj->Location_X.',E '.$postObj->Location_Y;
    
                    $msgType= "text";
    
                       $str = sprintf($textTpl,$fromUsername, $toUsername, $time, $msgType, $contentStr);
    
                       echo $str;
    
                       file_put_contents($file,'['.date('Y-m-d H:i:s').']content:'.$str.PHP_EOL, FILE_APPEND);
    
                       exit;
    
             }

10.    模版优化

由于程序中经常使用到模版，可以将模版提取为属性。

//模版
    
             private $tpl = array(
    
                       //文本模版
    
                       'text' => '<xml>
    
                                                   <ToUserName><![CDATA[%s]]></ToUserName>
    
                                                   <FromUserName><![CDATA[%s]]></FromUserName>
    
                                                   <CreateTime>%s</CreateTime>
    
                                                   <MsgType><![CDATA[text]]></MsgType>
    
                                                   <Content><![CDATA[%s]]></Content>
    
                                                   <FuncFlag>0</FuncFlag>
    
                                                   </xml>',
    
                       //被动回复消息的模版
    
                       'retext' => '<xml>
    
                                                   <ToUserName><![CDATA[%s]]></ToUserName>
    
                                                   <FromUserName><![CDATA[%s]]></FromUserName>
    
                                                   <CreateTime>%s</CreateTime>
    
                                                   <MsgType><![CDATA[text]]></MsgType>
    
                                                   <Content><![CDATA[%s]]></Content>
    
                                                   </xml>',
    
                       );

然后，在程序中使用到模版的地方改为使用属性。

$str = sprintf($this->tpl['retext'],$fromUsername, $toUsername, $time, $contentStr);

11.    获取用户列表

平台提供了接口获取用户列表。这个接口得到的是用户的openid，结合获取用户基本信息的接口，可以获取到用户的基本信息。

在微信工具类中创建\_getUserlist()

/**
    
              * 获取用户openid
    
              */
    
             public function _getUserOpenid()
    
             {
    
                       $url ="https://api.weixin.qq.com/cgi-bin/user/get?access_token=".$this->_getAccesstoken();
    
                       $content =$this->_request($url);
    
                       $file ="./userlist.txt";
    
                       file_put_contents($file,'['.date('Y-m-d H:i:s').']content:'.$content.PHP_EOL, FILE_APPEND);
    
                       $content =json_decode($content);
    
                       $users =$content->data->openid;
    
                       return $users;
    
             }
    
             /**
    
              * 获取用户列表
    
              */
    
             public function _getUserlist()
    
             {
    
                       //获取所有用户的openid
    
                       $users =$this->_getUserOpenid();
    
                       $jsonUsers = array();
    
                       foreach ($users as $k =>$v)
    
                       {
    
                                $jsonUsers['user_list'][$k]['openid']= $v;
    
                                $jsonUsers['user_list'][$k]['lang']= "zh_CN";
    
                       }
    
                       $jsonUsers =json_encode($jsonUsers);
    
                       $url ='https://api.weixin.qq.com/cgi-bin/user/info/batchget?access_token='.$this->_getAccesstoken();
    
                       $userInfolist =$this->_request($url, true, 'post', $jsonUsers);
    
                       $userInfolist =json_decode($userInfolist)->user_info_list;
    
                       //var_dump($userInfolist);die;
    
                       //拼写html代码将用户信息以表格输出
    
                       $html = "<tableborder='1' cellspacing='0'>";
    
                       $html.="<tr><td>openid</td><td>昵称</td><td>性别</td><td>国家</td><td>订阅否</td><td>订阅时间</td></tr>";
    
                       foreach ($userInfolist as $k=> $v)
    
                       {
    
                                $html .="<tr>";
    
                                $html .='<td>'.$v->openid.'</td>';
    
                                $html .='<td>'.$v->nickname.'</td>';
    
                                if($v->sex == 1)
    
                                {
    
                                         $html .='<td>男</td>';
    
                                }
    
                                else
    
                                {
    
                                         $html .='<td>女</td>';
    
                                }
    
                                $html .='<td>'.$v->country.'</td>';
    
                                if($v->subscribe== 1)
    
                                {
    
                                         $html .='<td>是</td>';
    
                                }
    
                                else
    
                                {
    
                                         $html .='<td>否</td>';
    
                                }
    
                                $html .='<td>'.date('Y-m-d H:i:s', $v->subscribe_time).'</td>';
    
                                $html .="</tr>";
    
                       }
    
                       $html.="</table>";
    
                      
    
                       return $html;
    
             }

创建调用获取列表的php脚本

12.    群发文本信息到用户

使用群发文本信息的接口。

注意对发送的文本内容先urlencode，后urldecode，以防止内容被unicode编码化。

/**
    
              * 群发信息
    
              */
    
             public function _sendAll($content)
    
             {
    
                       //获取所有用户的openid
    
                       $users =$this->_getUserOpenid();
    
                       //根据平台提供的模版制作post数据
    
                       /*
    
                       {
    
                          "touser":[
    
                           "OPENID1",
    
                           "OPENID2"
    
                          ],
    
                           "msgtype": "text",
    
                           "text": { "content":"hello from boxer."}
    
                       }
    
                       */
    
                       $data = array();
    
                       foreach ($users as $k =>$v)
    
                       {
    
                                $data['touser'][] =$v;
    
                       }
    
                       $data['msgtype'] = 'text';
    
                       $data['text']['content'] =urlencode($content);//对文本内容进行urlencode，以防止被解析为unicode
    
                       $data = urldecode(json_encode($data));//在对urlencode的内容进行urldecode，返回原来的编码格式
    
                       $url ='https://api.weixin.qq.com/cgi-bin/message/mass/send?access_token='.$this->_getAccesstoken();
    
                       $result =$this->_request($url, true, 'post', $data);
    
                       $result =json_decode($result);
    
                       if($result->errcode == 0)
    
                       {
    
                                echo '发送成功';
    
                       }
    
                       else
    
                       {
    
                                echo '系统异常，请联系管理员';
    
                       }
    
                       exit;
    
             }

编写群发消息的php脚本

13.    添加素材

可以新增临时或永久多媒体素材。新增素材存放在平台上，在调用时速度更快。

在微信工具类中创建\_addMedia()方法

/**
    
              * 添加素材
    
              */
    
             public function _addMedia($type, $file)
    
             {
    
                       $curl ="https://api.weixin.qq.com/cgi-bin/media/upload?access_token=".$this->_getAccesstoken()."&type=".$type;     
    
                       $data['type'] = $type;
    
                       $data['media'] = '@'.$file;
    
                       $result = $this->_request($curl,true, 'post', $data);
    
                       echo $result;
    
             }

编写脚本调用这个方法

14.    搜索音乐的功能

使用音乐搜索引擎实现搜索音乐，听歌的功能。

当用户输入歌曲歌名@歌手名，后得到音乐消息。

在doText()方法中，添加关键字开头二字为歌曲的分支结构

if(mb_substr($keyword, 0,2, 'utf-8') == '歌曲')
    
                    {
    
                              $this->_sendMusic($postObj);
    
                              exit;
    
                    }

创建处理音乐消息的方法

/**
    
              * 搜索歌曲的方法
    
              */
    
             private function _sendMusic($postObj)
    
             {
    
                       $content =$postObj->Content;
    
                       $content =mb_substr($content, 2,strlen($content)-2, 'utf-8');
    
                       $arr = explode('@',$content);
    
                       $singer = '';
    
                       $song = '';
    
                       if(isset($arr[1]))
    
                       {
    
                                $singer = $arr[1];
    
                                $song = $arr[0];
    
                                $curl ='http://www.xiami.com/search?key='.$arr[0].'+'.$arr[1];
    
                       }
    
                       else
    
                       {
    
                                $song = $arr[0];
    
                                $curl ='http://www.xiami.com/search?key='.$arr[0];
    
                       }
    
                       $response =$this->_request($curl, false);
    
                       $file =('./searchMusic.txt');
    
                       $response =mb_strstr($response, '</thead>', false, 'utf-8');
    
                       $response = mb_strstr($response,'</tbody>', true, 'utf-8');
    
                       $response = strstr($response,'http');
    
                       $response = strstr($response,'"', true);
    
                       $response =$this->_request($response, false);
    
                       $response = strstr($response,'<a onclick="play');
    
                       $response = strstr($response,"'");
    
                       $response = strstr($response,",", true);
    
                       $response = substr($response,1, strlen($response)-2);
    
                       file_put_contents($file,$response);
    
    
    
                       $fromUsername =$postObj->FromUserName;
    
            $toUsername = $postObj->ToUserName;
    
            $time = time();                      
    
                 $title= $song.'>>>'.$singer;
    
                 $desc= '欢迎收听'.$song.'&&&';
    
                 $musicUrl= 'http://www.xiami.com/play?ids=/song/playlist/id/'.$response;
    
                 $thumbMediaId= 'AoR3l2l-cNv6_fsns4SnKev1_riF8yvpTP3TJ7y9SLdl6ug9BlZXV9te_Pgcu_pT';
    
                 $resultStr= sprintf($this->tpl['music'], $fromUsername, $toUsername, $time, $title,$desc, $musicUrl, '', $thumbMediaId);
    
                 echo$resultStr;
    
            exit;