微信公众号实现会员卡领取功能

1、会员卡的领取也需要js-sdk接口（可以参考获取微信公众号获取用户的地理位置信息）（借鉴网址：http://gaoboy.com/article/25.html）

2、 比获取用户地理位置信息多了一个是需要单独获取签名包，签名方式也和获取用户地理位置的不同（这里再说一下获取签名包的方式）

获取js-sdk签名包：

       1、当前的url、时间戳、随机字符串、jsapiticket进行组合                

     //调用js-sdk的签名包
     public function getSignPackage() {
     $jsapiTicket = $this->getJsApiTicket();
     // 注意 URL 一定要动态获取，不能 hardcode.（获取当前网页的url）
     $protocol = (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off' || $_SERVER['SERVER_PORT'] == 443) ? "https://" : "http://";
     $url = "$protocol$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]";
     //时间戳
     $timestamp = time();
     //随机字符串获取
     $nonceStr = $this->createNonceStr();
     // 这里参数的顺序要按照 key 值 ASCII 码升序排序
     $string = "jsapi_ticket=$jsapiTicket&noncestr;=$nonceStr&timestamp;=$timestamp&url;=$url";
     //生成字符串是用来签名用的
     $signature = sha1($string);
     $signPackage = array(
      "appId"  => $this->appid,
      "nonceStr" => $nonceStr,
      "timestamp" => $timestamp,
      "url"  => $url,
      "signature" => $signature,
      "rawString" => $string
     );
     return $signPackage; 
     }

 获取会员卡签名包：      

    //使用会员卡领取的签名包
     public function getHuiYuanSignPackage() {
     $apiTicket = $this->getApiTicket();
     // 注意 URL 一定要动态获取，不能 hardcode.（获取当前网页的url）
     $protocol = (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off' || $_SERVER['SERVER_PORT'] == 443) ? "https://" : "http://";
     $url = "$protocol$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]";
     //时间戳
     $timestamp = time();
     //随机字符串获取
     // $nonceStr = $this->createNonceStr();
     // 这里参数的顺序要按照 key 值 ASCII 码升序排序
     $string = $timestamp.$apiTicket."pVYA_t3RCVF_yhNcO6QCeAmb-1UI";
     //生成字符串是用来签名用的
     $signature = sha1($string);
     $signPackage = array(
      "timestamp" => $timestamp,
      "signature" => $signature,
     );
     return $signPackage; 
     }

详细代码说明：

 HTML页面：         

      //引入微信js文件
       <script src="http://res.wx.qq.com/open/js/jweixin-1.0.0.js"></script>
    <script type="text/JavaScript">
    //配置信息验证接口（填写的js-sdk获取的签名包的参数）
    wx.config({
     debug: false,
     appId: '<?PHP echo $signPackage["appId"];?>',
     timestamp: '<?php echo $signPackage["timestamp"];?>',
     nonceStr: '<?php echo $signPackage["nonceStr"];?>',
     signature: '<?php echo $signPackage["signature"];?>',
     jsApiList: [
      // 所有要调用的 API 都要加到这个列表中
      'addCard'
      ]
       });
    wx.ready(function(){
            //添加卡券
        document.querySelector('#addCard').onclick = function () {
         wx.addCard({
          cardList: [
          {
           cardId: "",//微信公众号内创建的会员卡的id
           cardExt: '{"timestamp":"<?php echo $huiyuanPackage['timestamp'] ?>","signature":"<?php echo $huiyuanPackage['signature'] ?>"}'//会员卡的签名包
          }
          ],
         //成功之后的回调的函数(通过回调函数该表数据库是否领取会员卡的状态)
          success: function (res) {
          $.ajax({
          url: '__CONTROLLER__/editHuiYuan',
          type: 'post',
          dataType: 'json',
          data: {is_LingQu: '1',user_id:"<?php echo $user['user_id'] ?>"},
          success:function(){
          $("#addCard").html("我的会员卡");
          }
          })
          }
         });
        };
       });
    </script>

控制器中的代码：

类库：http://www.jb51.net/article/115732.htm

     public function index(){
     $user_id = session('user_id');
      if($user_id){
      $jssdk = new \Home\Model\WechatModel();
      $signPackage = $jssdk->GetSignPackage();//获取js-sdk签名包
      $huiyuanPackage = $jssdk->getHuiYuanSignPackage();获取会员卡签名包
      //获取用户信息 
      $user = M('user')->where(array('user_id' => $user_id))->find();
      //产品收藏数量统计
      $goods_count = M('goods_shoucang')->where(array('user_id' => $user_id))->count();
      //门店收藏数量统计
      $shop_count = M('shop_shoucang')->where(array('user_id' => $user_id))->count();
      }else{
      //判断该用户是否存在
      $model = new \Home\Model\WechatModel();
      $openid_accesstoken = $model->openId();
      $rst = M('user')->where(array('user_openid' => $openid_accesstoken['openid']))->find();
      if($rst){
       session('openid',$openid_accesstoken['openid']);
       session('user_id', $rst['user_id']);
       $jssdk = new \Home\Model\WechatModel();
       $signPackage = $jssdk->GetSignPackage();
       $huiyuanPackage = $jssdk->getHuiYuanSignPackage();
       //获取用户信息 
       $user = M('user')->where(array('user_id' => $rst['user_id']))->find();
       //产品收藏数量统计
       $goods_count = M('goods_shoucang')->where(array('user_id' => $rst['user_id']))->count();
       //门店收藏数量统计
       $shop_count = M('shop_shoucang')->where(array('user_id' => $rst['user_id']))->count();
      }else{
       $userInfo = $model->getOpenId($openid_accesstoken['openid'],$openid_accesstoken['access_token']);
         $data = array(
          'user_img' => $userInfo['headimgurl'],
          'user_openid' => $userInfo['openid'],
          'user_name' => filter($userInfo['nickname']),
          'user_register_time' => time(),
          'city' => $userInfo['province'].'-'.$userInfo['city'],
         );
       $id = M('user')->add($data);
       session('openid', $userInfo['openid']);
       session('user_id',$id);
       $jssdk = new \Home\Model\WechatModel();
       $signPackage = $jssdk->GetSignPackage();
       $huiyuanPackage = $jssdk->getHuiYuanSignPackage();
       //获取用户信息 
       $user = M('user')->where(array('user_id' => $id))->find();
       //产品收藏数量统计
       $goods_count = M('goods_shoucang')->where(array('user_id' => $id))->count();
       //门店收藏数量统计
       $shop_count = M('shop_shoucang')->where(array('user_id' => $id))->count();
       }
      }
      $this->assign('signPackage', $signPackage);
      $this->assign('huiyuanPackage', $huiyuanPackage);
      $this->assign('user', $user);
      $this->assign('shop_count', $shop_count);
      $this->assign('goods_count', $goods_count);
      $this->display();
     }

以上所述是小编给大家介绍的微信公众号实现会员卡领取功能，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对脚本之家网站的支持！