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/dayrui/App/Weixin/Models/User.php

// 綁定二維碼
    public function qrcode_bang($member) {

        $rt = weixin_get_access_token();
        if ($rt['code']) {
            $access_token = $rt['msg'];
            $param = [
                'expire_seconds' => 2592000,
                'action_name' => 'QR_LIMIT_STR_SCENE',
                'action_info' => array(
                    'scene' => array(
                        'scene_str' => $member ? 'bang-'.(int)$member['id'] : 'login-'.md5(SYS_TIME.$_SERVER['HTTP_USER_AGENT']),
                    ),
                )
            ];
       
            $rt = wx_post_https_json_data(
                'https://api.weixin.qq.com/cgi-bin/qrcode/create?access_token=' . $access_token,
                $param
            );
            if (!$rt['code']) {
                return dr_return_data(0, 'qrcode '.$rt['msg']);
            }
            // 更新狀態(tài)
            if ($member) {
                \Phpcmf\Service::M()->db->table('member_oauth')->where('uid', $member['id'])->where('oauth', 'wechat')->update([
                    'access_token' => 1,
                ]);
            }
            
            $url = 'https://mp.weixin.qq.com/cgi-bin/showqrcode?ticket=' . $rt['data']['ticket'];
            return dr_return_data(1, $url, $param);
        } else {
            return dr_return_data(0, 'access_token '.$rt['msg']);
        }
    }

官方插件里的生成登陸二維碼用的 QR_LIMIT_STR_SCENE ，是永久二維碼，你可以改為 QR_STR_SCENE 試試。

https://developers.weixin.qq.com/doc/offiaccount/Account_Management/Generating_a_Parametric_QR_Code.html