php如何进行微信公众号开发

php如何进行微信公众号开发

1、配置相关服务器

（1） 如下，把自己的服务器ip白名单配置上；

（2） 开始配置令牌，配置令牌时先需要把现成的代码放到自己的服务器上面，代码里面包含自己的设置的令牌号码，这样才可以配置成功。

注意：下面这个代码在配置好后，即可从服务器上面删除代码或者把index.php改一个名字。

url必须是完整的url,比如 http://118.78.176.74/weixin/index.php

<?php /**  * wechat php test  * update time: 20141008  */  //define your token //下面的即是你设置的token令牌  define("TOKEN", "zj123456"); $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, SORT_STRING);         $tmpStr = implode($tmpArr);         $tmpStr = sha1($tmpStr);          if ($tmpStr == $signature) {             return true;         } else {             return false;         }     } }

2、配置ok后，接下来就可以实现相关的微信公众号相关功能，比如说自动回复机器人。

代码包含3部分，当然，自动回复机器人，下面的代码有些用不到。

(1) 、index.php

<?php  define("APPID","xxxxxxx"); define("APPSECRET","xxxxxx"); define("TOKEN","zj123456");  require("./wechat.inc.php"); $wechat = new WeChat(APPID,APPSECRET,TOKEN); $wechat->responseMsg(); ?>

(2)、wechat.inc.php

<?php  class WeChat {     private $_appid;     private $_appsecret;     private $_token;      public function __construct($appid, $appsecret, $token)     {         $this->_appid = $appid;         $this->_appsecret = $appsecret;         $this->_token = $token;     }      /**      *_request():发出请求      *@curl:访问的URL      *@https：安全访问协议      *@method：请求的方式，默认为get      *@data：post方式请求时上传的数据      **/     private function _request($curl, $https = true, $method = 'get', $data = null, $headers = null)     {         $ch = curl_init(); //初始化         curl_setopt($ch, CURLOPT_URL, $curl); //设置访问的URL         // curl_setopt($ch, CURLOPT_HEADER, false); //设置不需要头信息         curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);         curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); //只获取页面内容，但不输出         if ($https) {             curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); //不做服务器认证             curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false); //不做客户端认证         }         if ($method == 'post') {             curl_setopt($ch, CURLOPT_POST, true); //设置请求是POST方式             curl_setopt($ch, CURLOPT_POSTFIELDS, $data); //设置POST请求的数据         }         $str = curl_exec($ch); //执行访问，返回结果         curl_close($ch); //关闭curl，释放资源         return $str;     }      /**      *_getAccesstoken()：获取access token      **/     private function _getAccesstoken()     {         $file = './accesstoken'; //用于保存access token         if (file_exists($file)) { //判断文件是否存在             $content = file_get_contents($file); //获取文件内容             $content = json_decode($content); //json解码             if (time() - filemtime($file) < $content->expires_in) //判断文件是否过期             {                 return $content->access_token;             } //返回access token         }         $content = $this->_request("https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=" . $this->_appid . "&secret=" . $this->_appsecret); //获取access token的json对象         file_put_contents($file, $content); //保存json对象到指定文件         $content = json_decode($content); //进行json解码         return $content->access_token; //返回access token     }      /**      *_getTicket():获取ticket，用于以后换取二维码      *@expires_secords：二维码有效期（秒）      *@type ：二维码类型（临时或永久）      *@scene：场景编号      **/     public function _getTicket($expires_secords = 604800, $type = "temp", $scene = 1)     {         if ($type == "temp") { //临时二维码的处理             $data = '{"expire_seconds":' . $expires_secords . ', "action_name": "QR_SCENE", "action_info": {"scene": {"scene_id": ' . $scene . '}}}'; //临时二维码生成所需提交数据             return $this->_request("https://api.weixin.qq.com/cgi-bin/qrcode/create?access_token=" . $this->_getAccesstoken(), true, "post", $data, ''); //发出请求并获得ticket         } else { //永久二维码的处理             $data = '{"action_name": "QR_LIMIT_SCENE", "action_info": {"scene": {"scene_id": ' . $scene . '}}}'; //永久二维码生成所需提交数据             return $this->_request("https://api.weixin.qq.com/cgi-bin/qrcode/create?access_token=" . $this->_getAccesstoken(), true, "post", $data, ''); //发出请求并获得ticket         }     }      /**      *_getQRCode():获取二维码      *@expires_secords：二维码有效期（秒）      *@type：二维码类型      *@scene：场景编号      **/     public function _getQRCode($expires_secords, $type, $scene)     {         $content = json_decode($this->_getTicket($expires_secords, $type, $scene)); //发出请求并获得ticket的json对象         $ticket = $content->ticket; //获取ticket         $image = $this->_request("https://mp.weixin.qq.com/cgi-bin/showqrcode?ticket=" . urlencode($ticket)         ); //发出请求获得二维码图像         //$file = "./".$type.$scene.".jpg";// 可以将生成的二维码保存到本地，便于使用         //file_put_contents($file, $image);//保存二维码         return $image;     }     public function valid() //检查安全性      {         $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"]; //获得用户发送信息         $postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);         switch ($postObj->MsgType) {             case 'event':                 $this->_doEvent($postObj);                 break;             case 'text':                 $this->_doText($postObj);                 break;             case 'image':                 $this->_doImage($postObj);                 break;             case 'voice':                 $this->_doVoice($postObj);                 break;             case 'video':                 $this->_doVideo($postObj);                 break;             case 'location':                 $this->_doLocation($postObj);                 break;             default:exit;         }     }      private function _doEvent($postObj)     { //事件处理         switch ($postObj->Event) {             case 'subscribe': //订阅                 $this->_doSubscribe($postObj);                 break;             case 'unsubscribe': //取消订阅                 $this->_doUnsubscribe($postObj);                 break;             default:;         }     }      private function _doSubscribe($postObj)     {         $tpltext = '<xml> <ToUserName><![CDATA[%s]]></ToUserName> <FromUserName><![CDATA[%s]]></FromUserName> <CreateTime>%s</CreateTime> <MsgType><![CDATA[text]]></MsgType> <Content><![CDATA[%s]]></Content> </xml>';         $access_token = $this->_getAccesstoken();         $userInfo = $this->getUserinfo($access_token, $postObj->FromUserName);         $str = sprintf($tpltext, $postObj->FromUserName, $postObj->ToUserName, time(), '欢迎您关注' . 'Geroge Zhang' . '的世界！');         //还可以保存用户的信息到数据库         echo $str;      }      private function _doUnsubscribe($postObj)     {         ; //把用户的信息从数据库中删除     }      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)) {             // $data_add = "question=" . $keyword;             // $appcode = "2fd264cdc7914b308e51ab986f73fb86";             // $headers = array();             // array_push($headers, "Authorization:APPCODE " . $appcode);             // $contentStr = $this->_request("http://jisuznwd.market.alicloudapi.com/iqa/query?question=" . $data_add, false, "GET", '', $headers);             $data_add = urlencode($keyword);             $contentStr = $this->_request("http://api.qingyunke.com/api.php?key=free&appid=0&msg=" . $data_add, false, "GET", '', '');             $contentStr = json_decode($contentStr, true);             if ($contentStr['result'] == 0) {                 $contentStr = $contentStr['content'];             }             if ($keyword == "hello") {                 $contentStr = "你好";             }              if ($keyword == "PHP") {                 $contentStr = "最流行的网页编程语言！";             }              if ($keyword == "JAVA") {                 $contentStr = "较流行的网页编程语言！";             }              $msgType = "text";             $resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time, $msgType, $contentStr);             echo $resultStr;         }         exit;     }      private function _doImage($postObj)     {         $tpltext = '<xml> <ToUserName><![CDATA[%s]]></ToUserName> <FromUserName><![CDATA[%s]]></FromUserName> <CreateTime>%s</CreateTime> <MsgType><![CDATA[text]]></MsgType> <Content><![CDATA[%s]]></Content> </xml>';         $str = sprintf($tpltext, $postObj->FromUserName, $postObj->ToUserName, time(), '您发送的图片在' . $postObj->PicUrl . "。");         echo $str;     }      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;         }     }      /**      * 获取用户昵称      * @param access_token  前面函数_getAccesstoken已经实现      * @param openid 即FromUserName这个参数      * url $urlid = 'https://api.weixin.qq.com/cgi-bin/user/info?access_token='.$access_token.'&openid='.$openid.'&lang=zh_CN';      * return userInfo      */     public function getUserinfo($access_token, $openid)     {         $urlid = 'https://api.weixin.qq.com/cgi-bin/user/info?access_token=' . $access_token . '&openid=' . $openid . '&lang=zh_CN';         $userInfo = $this->_request($urlid);         return $userInfo;     } }

注意：想要获取用户信息必须是认证过了的订阅号或者服务号！

综上，把如上三个文件，放到你的配置的服务器上面，即可实现自动回复机器人功能。