public function query($param){

     //$out_detail_no='lc'.$param;

       $url = 'https://api.mch.weixin.qq.com/v3/transfer/batches/batch-id/'.$param.'?need_query_detail=true&detail_status=ALL&offset=0&limit=20';

      // $url = 'https://api.mch.weixin.qq.com/v3/transfer/batches/out-batch-no/'.$param.'/details/out-detail-no/'.$out_detail_no;

     // $url = 'https://api.mch.weixin.qq.com/v3/transfer/batches/out-batch-no/'.$param.'?need_query_detail=true&detail_status=All';

      // $urls=urlencode($url);

      // echo $urls;

       //echo "<br>";

       $pars = [];

     // $pars['appid'] = $this->appid;//直连商户的appid

     $token  = $this->getToken($pars);//获取token

     //  var_dump($token);

       $res = $this->curlGet($url,json_encode($pars),$token);//发送请求

        return $res;

    }

   function curlGet($url , $data = null,$token)

    {

        $ch= curl_init($url);

        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

        curl_setopt($ch, CURLOPT_TIMEOUT, 500);

        if (!empty($data)) {

          curl_setopt($ch, CURLOPT_POSTFIELDS, $data);

         }

       curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);

       curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);

       $headers = [

            'Authorization:WECHATPAY2-SHA256-RSA2048 '.$token,

            'Accept: application/json',

            'Content-Type: application/json; charset=utf-8',

            'User-Agent:Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36',

        ];

        if(!empty($headers)){

           curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);

        }

        $data = curl_exec($ch);

        curl_close($ch);

        return $data;

    }