screen/application/common/service/WxOpenService.php

<?php
namespace app\common\service;


use app\common\model\User;
use EasyWeChat\Factory;
use GuzzleHttp\Client;
use think\Cache;

class WxOpenService{
    public static function config(){
        $config = [
            'app_id'   => config('site.wx_open_appid'),
            'secret'   => config('site.wx_open_secret'),
            'token'    => config('site.wx_open_token'),
            'aes_key'  => config('site.wx_open_aeskey'),
        ];
        return $config;
    }
    public static function getBindUrl($key,$e,$callback){
        /*$callback=url('index/wx/callback',[
            'key'=>$key,
            'e'=>$e,
        ],true,true);*/
        $redirectUrl=sprintf(
            'https://open.weixin.qq.com/connect/qrconnect?appid=%s&redirect_uri=%s&response_type=code&scope=%s&state=%s#wechat_redirect',
            self::config()['app_id'],
            urlencode($callback),
            'snsapi_login',
            session_create_id(),
        );
        return $redirectUrl;
    }
    public static function bind($key,$e){
        $code=input('code');
        $url=sprintf(
            'https://api.weixin.qq.com/sns/oauth2/access_token?appid=%s&secret=%s&code=%s&grant_type=authorization_code',
            self::config()['app_id'],
            self::config()['secret'],
            $code
        );
        $res=(new Client())->get($url)->getBody()->getContents();
        $arr=json_decode($res,true);
        if(isset($arr['errcode'])){
            return [false,$arr['errmsg'],$arr];
        }else{
            if($e==2) {
                $user=User::where('mobile',$key)->find();
                if($user){
                    if(!$user['openid']){
                        $user['openid']=$arr['openid'];
                    }
                    if(!$user['unionid']){
                        $user['unionid']=$arr['unionid']??null;
                    }
                    $user->save();
                }
            }
            elseif($e==1){
                //Cache::set("wx_open_openid_{$key}", $arr['openid'], 600);
                if(!empty($arr['unionid'])) {
                    Cache::set("union_id_{$arr['openid']}", $arr['unionid'], 600);
                }
            }
            return [true,$arr['openid'],$arr];
        }
    }
}