获取token，绑定微信号，自定义菜单，事件响应demo

摘要: 这个demo包含了获取token，绑定微信号，设置自定义菜单，响应文本和事件

这个教程的基础篇和提升篇都看完了，总感觉有点隔靴挠痒的感觉，讲的东西我都懂，没有吸收多少新鲜的知识。貌似还没有我这个一年前写的脚本好呢，估计也是照顾新人吧。期待高级篇的讲解，不过现在高级篇估计还在录制当中，所以对微信公众平台开发的学习就先到这里吧。

下面介绍一下我很久以前写的这个脚本。基本上常用的几个功能都有了，access_token的获取，用户的微信号和公司的账号的绑定，查询公司服务器上的数据，自定义表单什么。不过随着水平的提高，现在返回头来看，确实有很多的不足，比较最明显的就是token获取之后，没有保存下载，而是每一次访问都会获取一次，这个问题可以把token放入memcache中来解决。把代码贴上：

<?php

//获取ACCESS_TOKEN
$appid = "xxxxxxxxxxxxxxxxxxxxx";
$appsecret = "xxxxxxxxxxxxxxxxxxxxxxxxxxxx";
$url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid={$appid}&secret={$appsecret}";

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$output = curl_exec($ch);
curl_close($ch);
$jsoninfo = json_decode($output, true);
$access_token = $jsoninfo["access_token"];
//获取ACCESS_TOKEN end

//define my token
define("TOKEN", "xxxxxxxxxx");
//define my ACCESS_TOKEN
define("ACCESS_TOKEN",$access_token);

class IndexAction extends Action {

    public function index(){
        $this->responseMsg();
        $this->createMenu();

    }

    public function valid()
    {
         $echoStr = $_GET["echostr"];

         //valid signature , option
         if($this->checkSignature()){
             echo $echoStr;
             exit;
         }
     }

    /*
        description of       文本展示
        @param               none
        @return              none
        @author       act
        @vision
    */

    public function responseMsg()
    {
        //获取微信发来的数据
        $postStr = $GLOBALS["HTTP_RAW_POST_DATA"];

          //extract post data

        if (!empty($postStr)){
                //将这个xml编程一个对象
                  $postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);

                  $openid=$postObj->FromUserName;
                  $openid=(string)$openid;

                  $text_type = trim($postObj->MsgType);    //获取消息类型

                  switch ($text_type) {
                      case 'text':

                          $content=trim($postObj->Content);

                          //功能：绑定用户
                        //微信号，公司账号内容绑定，格式： 用户名+手机号+身份证后四位
                        $user_info=explode('+',$content);

                        $username=$user_info[0];    //用户提交的用户名
                        $phone=$user_info[1];       //提交的手机号码
                        $card_id=$user_info[2];     //提交的电话号码

                        $user_info_count=count($user_info);

                          if( $user_info_count==3){  //如果数组的元素为三个，说明就是验证微信号
                            $model=new Model();
                            $sql="select a.user_id,a.username,b.phone,c.card_id from deayou_users as a
                                left join deayou_users_info as b on a.user_id=b.user_id
                                left join deayou_approve_realname as c on a.user_id=c.user_id
                                where a.username='{$username}' and b.phone='{$phone}' and right(c.card_id,4)='{$card_id}'";
                            $res=$model->query($sql);

                            $cond['openid']=$openid;
                            $is_openid=M('weixin_user_bind')->where($cond)->find();  //是否已经绑定过

                            if($res && $is_openid){                                   //此刻 说明是修改
                            /*
                                以下注释的代码不要删除，万一哪天还要改回来，删掉注释即可。
                            */
//                                $where1['openid']=array('eq',$openid);
//                                $where['users_table_id']=$res[0]['user_id'];
//                                $res=M('weixin_user_bind')->where($where1)->data($where)->save();
//                                if($res){
//                                  $resultStr=$this->responseText($postObj,'恭喜您，修改绑定成功');
//                                }else{
//                                  $resultStr=$this->responseText($postObj,'修改绑定失败，请检查用户名、手机号、身份证号码是否一致');
//                                }
                                $resultStr=$this->responseText($postObj,'您已经绑定过账号了，请不要再次绑定');
                            }elseif ($res && empty($is_openid)) {                       //此刻说明是添加
                                $cond['users_table_id']=$res[0]['user_id'];
                                $cond['openid']=$openid;
                                $result=M('weixin_user_bind')->where($cond)->add($cond);
                                if($result){
                                  $resultStr=$this->responseText($postObj,'恭喜您，账号绑定成功');
                                }else{
                                  $resultStr=$this->responseText($postObj,'账号绑定失败，请检查用户名、手机号、身份证号码是否一致');
                                }
                            }else{
                                $resultStr=$this->responseText($postObj,'请输入正确格式，并且请检查用户名、手机号、身份证号码是否一致');
                            }
                          }else{
                            $resultStr=$this->responseText($postObj,'您好，感谢您关注xxx官方微信服务号！');
                        }

                          break;
                      case 'event':
                        $cond['openid']=$openid;
                        $res=M('weixin_user_bind')->where($cond)->find();
                        if($res){
                            $_SESSION['user_id']=$res['users_table_id'];
                        }
                          $resultStr    =    $this->handleEvent($postObj);

                      default:
                          # code...
                          break;
                  }
                  echo $resultStr;
        }else {
            echo "";
            exit;
        }
    }

    /*
        description of       文本调用
        @param      $Obj     用户传入数据对象
        @return              一个返回给用户的xml字符串
        @author act
        @vision
    */

    public function handleText($obj){
        $postObj        =    $obj;
        $toUsername     =    $postObj->ToUserName;
        $fromUsername     =    $postObj->FromUserName;
        $keyword        =    trim($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';
            $Content='欢迎加入xxx';
            $resultStr=sprintf($textTpl,$fromUsername,$toUsername,$time,$MsgType,$Content);
            return $resultStr;
        }        

    }

    /*
        description of  事件调用
        @param      $Obj     用户传入数据对象
        @return              一个返回给用户的xml字符串
        @author act
        @vision
    */

     public function handleEvent($obj){
         $content='';

         /**
          *     判断账户是否已经绑定
          */
         $openid=$obj->FromUserName;
         $openid=(string)$openid;
         $data['openid']=$openid;
         $is_bind=M('weixin_user_bind')->where($data)->select();

         switch (strtolower($obj->Event)) {
             case 'subscribe':
                $content="您好，感谢您关注xxx官方微信服务号！";
                break;
            case 'click':
                $key=$obj->EventKey;
                switch($key){                       //switch 判断出key值 依次判断
                    case 'zhbd':
                        if($is_bind){
                            $content = '您已经绑定过账户了哦~';
                        }else{
                            $content = '请输入验证信息'."\n".'格式(加号也要写上哦~)：'."\n"."用户名+手机号+身份证后4位"."\n"."例如："."\n"."iloveyou+13800000000+1111";
                        }
                        break;
                    case 'xxzh':
                        if(empty($_SESSION['user_id'])){
                            $resultStr=$this->responseText($obj,'请先进行账号绑定');
                            return $resultStr;
                        }
                        $content = R('Info/select_account');
                        break;
                    case 'jrxyb':
                        if(empty($_SESSION['user_id'])){
                            $resultStr=$this->responseText($obj,'请先进行账号绑定');
                            return $resultStr;
                        }
                        $content = R('Info/select_xinyibao');
                        break;
                    case 'sbxx':
                        if(empty($_SESSION['user_id'])){
                            $resultStr=$this->responseText($obj,'请先进行账号绑定');
                            return $resultStr;
                        }
                        $content = R('Info/select_sanbiao');
                        break;
                    case 'jkxx':
                        if(empty($_SESSION['user_id'])){
                            $resultStr=$this->responseText($obj,'请先进行账号绑定');
                            return $resultStr;
                        }
                        $content = R('Info/select_jiekuan');
                        break;
                    default:
                        $content = '即将推出，敬请期待^_^';
                        break;
                }

                break;
             default:
                 $content='不知道这个'.$obj->Event;
                 break;
         }

         $resultStr=$this->responseText($obj,$content);
         return $resultStr;
     }

     /*
        description of  返回文本
        @param      $Obj     用户传入数据对象
        @param      $cont    返回给用户的内容
        @param      $flag    不太了解（貌似没有多大作用）
        @return              一个返回给用户的xml字符串
        @author act
        @vision
    */

    public function responseText($Obj,$cont,$flag=0){
         $postObj        =    $Obj;
         $toUsername     =    $postObj->ToUserName;
         $fromUsername     =    $postObj->FromUserName;

         $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>";

             $MsgType='text';
             $resultStr=sprintf($textTpl,$fromUsername,$toUsername,$time,$MsgType,$cont);
             return $resultStr;

     }

     /*
       description of  系统验证 不用管
       @param      none
       @return     none
       @author     I don't know
       @vision     none
   */

    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;
        }
    }

    /*
        description of  自定义菜单
        @param      $data    传入自定义菜单的json数组
        @return              post提交执行结果
        @author act
        @vision
    */

    function createMenu($data){
        $data = '{
            "button":[
            {
            "name":"业务咨询",
            "sub_button":[
                {
                "type":"view",
                "name":"我要理财",
                "url":"http://www.baidu.com"
                },
                {
                "type":"view",
                "name":"我要贷款",
                "url":"http://www.baidu.com"
                },
                {
                "type":"view",
                "name":"我要加盟",
                "url":"http://www.baidu.com"
                },
                {
                "type":"view",
                "name":"我要建议",
                "url":"http://www.baidu.com"
                }
                ]
            },
            {
            "name":"xxx在线",
            "sub_button":[
                {
                "type":"click",
                "name":"账户绑定",
                "key":"zhbd"
                },
                {
                "type":"click",
                "name":"查询账户",
                "key":"xxzh"
                },
                {
                "type":"click",
                "name":"加入xxx",
                "key":"jrxyb"
                },
                {
                "type":"click",
                "name":"散投信息",
                "key":"sbxx"
                },
                {
                "type":"click",
                "name":"借款信息",
                "key":"jkxx"
                }]
            },
            {
            "name":"关于我们",
            "sub_button":[
                {
                "type":"view",
                "name":"公司简介",
                "url":"http://www.baidu.com"
                },
                {
                "type":"view",
                "name":"安全保障",
                "url":"http://www.baidu.com"
                },
                {
                "type":"view",
                "name":"联系我们",
                "url":"http://www.baidu.com"
                }]
            }]
        }';
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, "https://api.weixin.qq.com/cgi-bin/menu/create?access_token=".ACCESS_TOKEN);
        curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
        curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
        curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (compatible; MSIE 5.01; Windows NT 5.0)');
        curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
        curl_setopt($ch, CURLOPT_AUTOREFERER, 1);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        $tmpInfo = curl_exec($ch);
        if (curl_errno($ch)) {
            return curl_error($ch);
        }
        curl_close($ch);
        return $tmpInfo;
    }

}