public function get_qrcode (){

 $arr =[ 'action_name'=>'QR_LIMIT_SCENE',

        'action_info'=>[

            'scene'=>['scene_id'=>1001]

          ],

     ];

     $accessToken = $this->getAccessToken();

     $url = "https://api.weixin.qq.com/cgi-bin/qrcode/create?access_token={$accessToken}";

     $r  = $this->httpPost($url,json_encode($arr,320));

     header('location:'.'https://mp.weixin.qq.com/cgi-bin/showqrcode?ticket='.urlencode($r['ticket']));

     exit;    

    } //分别测试过临时和固定码，字符串和数字，第一次关注推送事件中无场景值，关注后再扫就有，

第一次扫码{"ToUserName":"gh_d6*****","FromUserName":"*******","CreateTime":"1763213603","MsgType":"event","Event":"subscribe","EventKey":[]}

第二次扫码{"ToUserName":"gh_d62***","FromUserName":"*****Rs","CreateTime":"1763214019","MsgType":"event","Event":"SCAN","EventKey":"1001","Ticket":"*******LnFxLmNvbS9xLzAyVl80bjhUOpAwQAAAAA"}，不知道哪里的原因，太奇怪了，手机用的鸿蒙6.0.0.110，难道是鸿蒙版微信问题？