使用YII2框架实现微信公众号中表单提交功能

//获得回调函数 public function actionCallback($code,$state){    $model = new tp_tstz_proposal();    $model1= new tp_tstz_staff();    // 微信开放平台网站应用的appid和秘钥secret    $appid = '';    $secret = '';    $curl = new curl/Curl();    //获取access_token    $wxresponse = $curl->get('https://api.weixin.qq.com/sns/oauth2/access_token?appid=' . $appid      . '&secret=' . $secret . '&code=' . $code . '&grant_type=authorization_code');    $wxresult = json_decode($wxresponse);    if(isset($wxresult->errcode) && $wxresult->errcode > 0){      //分享出去，重新认证     return $this->render('login');      // 向微信请求授权时出错，打印错误码      // echo json_encode($wxresult);      // exit;    }    $openid=$wxresult->openid;    $result=$model1::find()->where(['openid'=>$openid])->one();    //如果OPENID存在就去表单    if(count($result)>0){      $key=123456;      return $this->render('view',['model'=>$model,'key'=>$key]);    }else{      return $this->render('tel',['model'=>$model1,'openid'=> $openid]);    }  }`

header('Location:https://open.weixin.qq.com/connect/oauth2/authorize?appid=wx8ba95fc51672e844&redirect_uri=http%3a%2f%2fjifen.wendu.cn%2fts%2fweb%2findex.php%3fr%3dproposal%2fcallback&response_type=code&scope=snsapi_base&state=123asd#wechat_redirect');

if(!isset($key)){  header('Location:http://jifen.wendu.cn/ts/web/index.php?r=say/login');}