php如何进行微信公众号开发

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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

<?phpclass 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。

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