微信代小程序实现获取单日数据

public function day(){
        $this->open_ini();
        $begin_date = date("Ymd",strtotime("-2 day"));//前天
        $end_date = date("Ymd",strtotime("-1 day"));//昨天
        // dd($end_date);
        $url = "https://api.weixin.qq.com/datacube/getweanalysisappidvisitpage?access_token=".$this->token['authorizer_access_token'];
        $data = '{"begin_date":"'.$begin_date.'","end_date":'.$end_date.'"}';
        $ret = object_to_array(json_decode(post_curl($url,$data))->list);
        //判断是否存在
        $is_save = Db::name('xcx_day_log')->where([['appid','=',session('pt_res')['appid']],['date','=',$end_date]])->find();
        if(!$is_save){
            foreach($ret as $k=>$vo){
                $save_data = $vo;
                $save_data['appid'] =session('pt_res')['appid'];
                $save_data['date'] = $end_date;
                Db::name('xcx_day_log')->insert($save_data);  
            }
        }else{
        	dd('已创建');
        }

    }
    private function open_ini(){
        $data = session('pt_res');
        $this->pt_res = $data;
        $openPlatform = Facade::openPlatform(); // 开放平台
        $this->app = $openPlatform->miniProgram( $this->pt_res['appid'], $this->pt_res['refreshToken']);
        $accessToken = $this->app->access_token; // 获取 access token 实例
        $token = $accessToken->getToken();
        $this->token = $token;
    }