微信公众号图文回复验证码并写入数据库的基本思路

接了个小活：要求公众号中用户回复1，公众号被动回复7位数验证码，同时把用户openId和验证码写入数据库

简单写了各测试demo：工具 thinkphp   订阅号子钦有话说内申请的测试账号 

接口配置信息修改

Controller控制器   输入1得到被动回复验证码（里面大多数代码与标题无关，想必大家能用到，所以没有删除）

<?php
namespace HomeController;
use HomeCommonCommonController;
/**
 *@parame  微信公众号开发 
 */
class WeChatController extends CommonController {
    //配置接口信息接入api
    public function index() {
        //1.获得参数 signature nonce token timestamp echostr
        $nonce     = $_GET['nonce'];
        $token     = 'zhangmangde';
        $timestamp = $_GET['timestamp'];
        $echostr   = $_GET['echostr'];
        $signature = $_GET['signature'];
        //2.拼成数组，然后按字典序排序
        $array     = array();
        $array     = array($nonce,$timestamp,$token);
        sort($array);
        //3.拼成字符串，sha1加密，然后和$signature进行比较
        $str = sha1(implode($array));
        if($str == $signature && $echostr){
            //第一次接入微信api的时候
            echo $echostr;
            exit;
        }else{
            $this->responseMsg();
        }
        
    }
    
    /*public function show(){
        echo 'zhangmangde';
    }*/
    //接受事件，推送并回复
    public function responseMsg(){
        //1.获取到微信推送过来的post数据（xml格式）
        $postArr = $GLOBALS['HTTP_RAW_POST_DATA'];
        //2.处理消息类型，并设置回复内容和类型
        /*<xml>
        <ToUserName><![CDATA[toUser]]></ToUserName>
        <FromUserName><![CDATA[FromUser]]></FromUserName>
        <CreateTime>123456789</CreateTime>
        <MsgType><![CDATA[event]]></MsgType>
        <Event><![CDATA[subscribe]]></Event>
        </xml>*/
        $postObj = simplexml_load_string($postArr);//将xml字符串载入对象中
        //$postObj->ToUserName = '';
        //$postObj->FromUserName = '';
        //$postObj->CreateTime = '';
        //$postObj->MsgType = '';
        //$postObj->Event = '';
        //判断该数据包是否是订阅的事件推送
        if(strtolower($postObj->MsgType) == 'event'){
            //如果是关注subcribe事件
            if(strtolower($postObj->Event) == 'subscribe'){
                //回复用户消息
                $arr  = array(
                    array(
                        'title'       => '欢迎关注子钦的公众号开发版哟^^~~^^',
                        'description' => '张子钦很酷哦 or ziqin is very cool 哈哈！关注有惊喜哦',
                        'picUrl'      => 'http://waphd.simufengyun.com/Public/Home/images/zmd123.png',
                        'url'         => 'http://wap.simufengyun.com/',
                    ),
                );
                //实例化模型
                $weChatModel = new HomeModelWeChatModel;//实例化时，一定要注意Model的路径问题 下面a()方法是测试路径问题
                $weChatModel->responseSubscribe($postObj,$arr);//调用模型中的方法
            }    
            //点击事件
            if(strtolower($postObj->Event) == 'click'){
                //如果是自定义菜单中的event->click
                if(strtolower($postObj->EventKey) == 'item1'){
                    $content = "这是菜单一事件的推送";
                }
                if(strtolower($postObj->EventKey) == 'songs'){
                    $content = "这是歌曲事件的推送";
                }
                //实例化模型
                //实例化模型
                $weChatModel = new HomeModelWeChatModel;
                $weChatModel->responseText($postObj,$content);//调用方法
            }
            //跳转事件
            if(strtolower($postObj->Event) == 'view'){
                //如果是自定义菜单中的event->view
                $content = "要跳转的链接是".$postObj->EventKey;
                //实例化模型
                $weChatModel = new HomeModelWeChatModel;
                $weChatModel->responseText($postObj,$content);//调用方法
            }
            //
            if(strtolower($postObj->Event) == 'SCAN'){
                //自定义菜单中的event->scan
                $content = "扫描场景".$postObj->EventKey;
                //实例化模型
                $weChatModel = new HomeModelWeChatModel;
                $weChatModel->responseText($postObj,$content);//调用方法
            }
            if(strtolower($postObj->Event) == 'LOCATION'){
                //自定义菜单中的event->LOCATION
                $content = "上传位置：纬度".$postObj->Latitude.";经度".$postObj->Longitude;
                //实例化模型
                $weChatModel = new HomeModelWeChatModel;
                $weChatModel->responseText($postObj,$content);//调用方法
            }
            if(strtolower($postObj->Event) == 'scancode_waitmsg'){
                //自定义菜单中的event->scancode_waitmsg
                $content = "扫描带提示：类型".$postObj->ScanCodeInfo->ScanType."结果：".$postObj->ScanCodeInfo->ScanResult;
                //实例化模型
                $weChatModel = new HomeModelWeChatModel;
                $weChatModel->responseText($postObj,$content);//调用方法
            }
            if(strtolower($postObj->Event) == 'scancode_push'){
                //自定义菜单中的event->scancode_push
                $content = "扫码推事件";
                //实例化模型
                $weChatModel = new HomeModelWeChatModel;
                $weChatModel->responseText($postObj,$content);//调用方法
            }
            if(strtolower($postObj->Event) == 'pic_sysphoto'){
                //自定义菜单中的event->pic_sysphoto
                $content = "系统拍照";
                //实例化模型
                $weChatModel = new HomeModelWeChatModel;
                $weChatModel->responseText($postObj,$content);//调用方法
            }
            if(strtolower($postObj->Event) == 'pic_weixin'){
                //自定义菜单中的event->pic_weixin
                $content = "相册发图：数量".$postObj->SendPicsInfo->Count;
                //实例化模型
                $weChatModel = new HomeModelWeChatModel;
                $weChatModel->responseText($postObj,$content);//调用方法
            }
            if(strtolower($postObj->Event) == 'pic_photo_or_album'){
                //自定义菜单中的event->pic_photo_or_album
                $content = "拍照或者相册：数量".$postObj->SendPicsInfo->Count;
                //实例化模型
                $weChatModel = new HomeModelWeChatModel;
                $weChatModel->responseText($postObj,$content);//调用方法
            }
            if(strtolower($postObj->Event) == 'location_select'){
                //自定义菜单中的event->location_select
                $content = "发送位置：标签".$postObj->SendLocationInfo->Label;
                //实例化模型
                $weChatModel = new HomeModelWeChatModel;
                $weChatModel->responseText($postObj,$content);//调用方法
            }
        }
        
        //判断是否是纯文本
        /*if(strtolower($postObj->MsgType) == 'text'){
            switch(trim($postObj->Content)){
                case 1:
                    $content = '您输入的数字是1';
                break;
                case 2:
                    $content = '您输入的数字是2';
                break;
                case 3:
                    $content = '您输入的数字是3';
                break;
                case '英文':
                    $content = 'ziqin is very good';
                break;
                case '电话':
                    $content = '15236272691';
                break;
                case '百度':
                    $content = '<a href="https://www.baidu.com">百度搜索</a>';
                break;
            }
            $template = "<xml>
                        <ToUserName><![CDATA[%s]]></ToUserName>
                        <FromUserName><![CDATA[%s]]></FromUserName>
                        <CreateTime>%s</CreateTime>
                        <MsgType><![CDATA[%s]]></MsgType>
                        <Content><![CDATA[%s]]></Content>
                        </xml>";
            $toUser   = $postObj->FromUserName;
            $fromUser = $postObj->ToUserName;
            $time     = time();
            $msgType  = 'text';
            echo sprintf($template,$toUser,$fromUser,$time,$msgType,$content);
        }*/
        
        //用户发送tuwen1关键字的时候，发送一个图文 或者发送纯文本  或者多图文
        if(strtolower($postObj->MsgType) == 'text' && trim($postObj->Content)=='tuwen1'){
            $arr  = array(
                array(
                    'title'       => '私募风云网年度峰会报名开始啦',
                    'description' => 'ziqin is very cool',
                    'picUrl'      => 'http://wap.simufengyun.com//Public/Home/images/ban1.jpg',
                    'url'         => 'http://wap.simufengyun.com/',
                ),
                array(
                    'title'       => '私募风云网官方网站',
                    'description' => 'simufengyun is very cool',
                    'picUrl'      => 'http://wap.simufengyun.com//Public/Home/images/ban2.jpg',
                    'url'         => 'http://wap.simufengyun.com/',
                ),
                array(
                    'title'       => '我是子钦有话说',
                    'description' => 'ziqin is very cool',
                    'picUrl'      => 'http://wap.simufengyun.com//Public/Home/images/ban3.jpg',
                    'url'         => 'http://wap.simufengyun.com/',
                ),
            );
            //实例化模型
            $weChatModel = new HomeModelWeChatModel;//实例化时，一定要注意Model的路径问题 下面a()方法是测试路径问题
            $weChatModel->responseNews($postObj,$arr);//调用模型中的方法
        }else{
            switch(trim($postObj->Content)){
                case 1:
                    　　$openId = $postObj->FromUserName;//获取用户openId

　　　　　　　　　　$content .= '您的验证码是:'.getsRandChar(7)."
";//回复随机7位数验证码 
　　　　　　　　　　$content .='您的openId是:'.$openId;
　　　　　　　　　　//此处可以操作写入数据库
                break;
                case 2:
                    $content = '您输入的数字是2';
                break;
                case 3:
                    $content = '您输入的数字是3';
                break;
                case 4:
                    $content = '张';
                break;
                case '英文':
                    $content = 'ziqin is very good';
                break;
                case '电话':
                    $content = '15236272691';
                break;
                case '百度':
                    $content = '<a href="https://www.baidu.com">百度搜索</a>';
                break;
                default:
                    $content = "没有找到相关信息";
                break;
            }
            
            //实例化模型
            $weChatModel = new HomeModelWeChatModel;
            $weChatModel->responseText($postObj,$content);//调用方法
        }
    }
    
    
    //接收事件消息
   /* private function receiveEvent($object)
    {
        $content = "";
        switch ($object->Event)
        {
            case "subscribe":
                $content = "欢迎关注方倍工作室 ";
                $content .= (!empty($object->EventKey))?("
来自二维码场景 ".str_replace("qrscene_","",$object->EventKey)):"";
                break;
             case "unsubscribe":
                 $content = "取消关注";
                 break;
             case "CLICK":
                switch ($object->EventKey)
                {
                    case "COMPANY":
                         $content = array();
                         $content[] = array("Title"=>"方倍工作室", "Description"=>"", "PicUrl"=>"http://discuz.comli.com/weixin/weather/icon/cartoon.jpg", "Url" =>"http://m.cnblogs.com/?u=txw1958");
                         break;
                     default:
                         $content = "点击菜单：".$object->EventKey;
                         break;
                 }
                 break;
            case "VIEW":
                 $content = "跳转链接 ".$object->EventKey;
                 break;
            case "SCAN":
                $content = "扫描场景 ".$object->EventKey;
                 break;
             case "LOCATION":
                 $content = "上传位置：纬度 ".$object->Latitude.";经度 ".$object->Longitude;
                break;
             case "scancode_waitmsg":
                 $content = "扫码带提示：类型 ".$object->ScanCodeInfo->ScanType." 结果：".$object->ScanCodeInfo->ScanResult;
                 break;
            case "scancode_push":
                $content = "扫码推事件";
                 break;
             case "pic_sysphoto":
                 $content = "系统拍照";
                 break;
             case "pic_weixin":
                 $content = "相册发图：数量 ".$object->SendPicsInfo->Count;
                 break;
             case "pic_photo_or_album":
                 $content = "拍照或者相册：数量 ".$object->SendPicsInfo->Count;
                 break;
             case "location_select":
                 $content = "发送位置：标签 ".$object->SendLocationInfo->Label;
                 break;
             default:
                 $content = "receive a new event: ".$object->Event." 
技术支持 方倍工作室";
                 break;
        }

         if(is_array($content)){
            if (isset($content[0]['PicUrl'])){
                $result = $this->transmitNews($object, $content);
             }else if (isset($content['MusicUrl'])){
                 $result = $this->transmitMusic($object, $content);
             }
         }else{
             $result = $this->transmitText($object, $content);
        }
         return $result;
     }*/
    
    //采集远程数据
    /*function http_curl(){
        //获取远程数据
        //1.初始化curl
        $ch  = curl_init();
        $url = 'http://wap.simufengyun.com';
        //2.设置curl参数
        curl_setopt($ch,CURLOPT_URL,$url);
        curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);
        //3.采集
        $output = curl_exec($ch);
        //4.关闭
        curl_close($ch);
        var_dump($output);
    }*/
    
    /**
    *$url 接口url string
    *$type 请求类型 string
    *$res 返回数据类型 string
    *$arr post请求参数 string
    */
    function http_curl($url,$type='get',$res='json',$arr=''){
        //获取远程数据
        //1.初始化curl
        $ch  = curl_init();
        //$url = 'http://wap.simufengyun.com';
        //2.设置curl参数
        curl_setopt($ch,CURLOPT_URL,$url);
        curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);
        if($type == 'post'){
            curl_setopt($ch,CURLOPT_POST,1);
            curl_setopt($ch,CURLOPT_POSTFIELDS,$arr);
        }
        //3.采集
        $output = curl_exec($ch);
        //4.关闭
        curl_close($ch);
        if($res == 'json'){
            if(curl_error($ch)){
                //请求失败，返回错误信息
                return curl_error($ch);
            }else{
                return json_decode($output,true);
            }
            
        }
        //var_dump($output);
    }
    
    //获取access_token和微信服务器ip地址
    /*function getWxAccessToken(){
        //1.请求url地址
        $appid   = 'wxd3a57f24b4e021b2';
        $appsecret = 'feffb8659a14792c9323fdf27b4b35f7';
        $url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=".$appid."&secret=".$appsecret;
        //2.初始化
        $ch  = curl_init();
        //3.设置参数
        curl_setopt($ch,CURLOPT_URL,$url);
        curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);
        //4.调用接口(采集)
        $res = curl_exec($ch);
        //5.关闭curl
        curl_close($ch);
        if(curl_errno($ch)){
            var_dump(curl_error($ch));
        }
        $arr = json_decode($res,true);
        var_dump($arr);
    }*/
    //获取微信服务器ip
    function getWxServerIp(){
        $accessToken = "9E_hA1sd77bpRQ0GqhyU4G5zpLxKZM3Yrxa1za0yyYQpWJmXif5AI3nRNUBe6xESQtQR5SbHHTkvYx5XkcnXkcXn6gVpGVGGbCswbLMMtqEfD1mGXHobq3nKtUkwFXvVSLXgABAFYK";
        $url = "https://api.weixin.qq.com/cgi-bin/getcallbackip?access_token=".$accessToken;
        $ch = curl_init();
        curl_setopt($ch,CURLOPT_URL,$url);
        curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);
        $res = curl_exec($ch);
        curl_close($ch);
        if(curl_errno($ch)){
            var_dump(curl_error($ch));
        }
        $arr = json_decode($res,true);
        echo "<pre>";
        var_dump($arr);
        echo "<pre>";
        
    }
    
    //测试实例化Model模型路径问题 
    public function a(){
        $weChatModel = new HomeModelWeChatModel;
        var_dump($weChatModel);
    }
    
    //返回access_token;  access_token存入session避免重复调用
    public function getWxAccessToken(){
        //将access_token 存在session/cookie中
        if($_SESSION['access_token'] && $_SESSION['expires_time']>time()){
            //如果access_token在session并没有过期
            return $_SESSION['access_token'];
        }else{
            //如果access_token在session不存在或者已经过期，重新取access_token
            $appid   = 'wxd3a';//此处用你自己的appid
            $appsecret = 'feffb8659a14792c9323fdf';//用你自己的appsecret
            $url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=".$appid."&secret=".$appsecret;
            $res = $this->http_curl($url,'get','json');
            $access_token = $res['access_token'];
            //将重新获取到的access_token存入session
            $_SESSION['access_token'] = $access_token;
            $_SESSION['expires_time']  = time() + 7200;
            return $access_token;
        }
    }
    //自定义菜单
    public function definedItem(){
        //创建微信菜单
        //目前微信接口的调用方式都是通过curl post/get
        header('content-type:text/html;charset=utf-8');//解决中文乱码
        echo $access_token = $this->getWxAccessToken();
        $url = "https://api.weixin.qq.com/cgi-bin/menu/create?access_token=".$access_token;
        $postArr = array(
            'button'=>array(
                array(
                    'name'=>urlencode('子钦'),
                    'type'=>'click',
                    'key'=>'item1',
                ),//第一个一级菜单
                array(
                    'name'=>urlencode('子钦语录'),
                    'sub_button'=>array(
                        array(
                            'name'=>urlencode('歌曲'),
                            'type'=>'click',
                            'key'=>'songs',
                        ),//第一个二级菜单
                        array(
                            'name'=>urlencode('私募风云网'),
                            'type'=>'view',
                            'url'=>'http://wap.simufengyun.com',
                        ),//第二个二级菜单
                    ),
                    
                ),//第二个一级菜单
                array(
                    'name' =>urlencode('子钦心语'),
                    'type' =>'view',
                    'url' => 'http://wap.simufengyun.com',
                ),//第三个一级菜单
            ),
            
        );
        //其他按钮类型
        $postArr2 = array(
            'button'=>array(
                array(
                    'name'=>urlencode('扫码'),
                    'sub_button'=>array(
                        array(
                            'type'=>"scancode_waitmsg",
                            'name'=>urlencode("扫码带提示"),
                            'key'=>"rselfmenu_0_0",
                            
                        ),//第一个二级菜单
                        array(
                            'type'=>"scancode_push",
                            'name'=>urlencode("扫码推事件"),
                            'key'=>"rselfmenu_0_1",
                        ),//第二个二级菜单
                    ),
                ),//第一个一级菜单
                array(
                    'name'=>urlencode("发图"),
                    'sub_button'=>array(
                        array(
                            'type'=>'pic_sysphoto',
                            'name'=>urlencode("系统拍照发图"),
                            'key'=>"rselfmenu_1_0",
                        ),//第一个二级菜单
                        array(
                            'type'=>'pic_photo_or_album',
                            'name'=>urlencode("拍照或者相册发图"),
                            'key'=>"rselfmenu_1_1",
                        ),//第二个二级菜单
                        array(
                            'type'=>'pic_weixin',
                            'name'=>urlencode("微信相册发图"),
                            'key'=>"rselfmenu_1_2",
                        ),//第三个二级菜单
                    ),
                ),//第二个一级菜单
                array(
                    'name'=>urlencode("发送位置"),
                    'type'=>"location_select",
                    "key"=>"rselfmenu_2_0",
                ),//第三个一级菜单
            ),
        );
        /*echo '<hr />';
        var_dump($postArr);
        echo '<hr />';
        echo $postJson = urldecode(json_encode($postArr));
        $res = $this->http_curl($url,'post','json',$postJson);
        echo "<hr/>";
        var_dump($res);*/
        echo '<hr />';
        var_dump($postArr2);
        echo '<hr />';
        echo $postJson = urldecode(json_encode($postArr2));
        $res = $this->http_curl($url,'post','json',$postJson);
        echo "<hr/>";
        var_dump($res);
    }
    
}

Model类

<?php
namespace HomeModel;
use ThinkModel;
class WeChatModel extends Model{
    //多图文的回复微信方法
    public function responseNews($postObj,$arr)
    {
        $toUser   = $postObj->FromUserName;
        $fromUser = $postObj->ToUserName;
        $time     = time();
        $template = "<xml>
                    <ToUserName><![CDATA[%s]]></ToUserName>
                    <FromUserName><![CDATA[%s]]></FromUserName>
                    <CreateTime>%s</CreateTime>
                    <MsgType><![CDATA[%s]]></MsgType>
                    <ArticleCount>".count($arr)."</ArticleCount>
                    <Articles>";
        foreach($arr as $k=>$v){
            $template .="<item>
                        <Title><![CDATA[".$v['title']."]]></Title> 
                        <Description><![CDATA[".$v['description']."]]></Description>
                        <PicUrl><![CDATA[".$v['picUrl']."]]></PicUrl>
                        <Url><![CDATA[".$v['url']."]]></Url>
                        </item>";
            }
        $template .= "</Articles>
                    </xml>";
        echo sprintf($template,$toUser,$fromUser,$time,'news');
     }
     
     //回复单文本
     public function responseText($postObj,$content){
        $template = "<xml>
                    <ToUserName><![CDATA[%s]]></ToUserName>
                    <FromUserName><![CDATA[%s]]></FromUserName>
                    <CreateTime>%s</CreateTime>
                    <MsgType><![CDATA[%s]]></MsgType>
                    <Content><![CDATA[%s]]></Content>
                    </xml>";
        $toUser   = $postObj->FromUserName;
        $fromUser = $postObj->ToUserName;
        $time     = time();
        $msgType  = 'text';
        echo sprintf($template,$toUser,$fromUser,$time,$msgType,$content);
     }
    //回复用户关注消息
    public function responseSubscribe($postObj,$arr){
        $this->responseNews($postObj,$arr);
    }
 }

7位验证的函数方法

//生成随机数,length长度 
function getsRandChar($length){
    $str = null;
    $strPol = "0123456789abcdefghijklmnopqrstuvwxyz";//不区分大小写
　 　//$strPol = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789abcdefghijklmnopqrstuvwxyz";//区分大小写
    $max = strlen($strPol)-1;
    for($i=0;$i<$length;$i++){
        $str.=$strPol[rand(0,$max)];//rand($min,$max)生成介于min和max两个数之间的一个随机整数
    }
    return $str;
} 

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