PHP微信小程序授权登录_小程序手机号登录 php

 /**
     * 微信授权登录
     * @throws \think\db\exception\DataNotFoundException
     * @throws \think\db\exception\ModelNotFoundException
     * @throws \think\exception\DbException
     */
    public function wxlogin()
    {
        //接收参数
        $code = $this->request->post('code'); //code码
        //验证参数
        if (empty($code)){
            $this->error('参数不能为空');
        }
        //自己到微信公众平台获取
        $appid = $this->appid;
        $secret = $this->secret;
        //获取openid
        $url = "https://api.weixin.qq.com/sns/jscode2session?appid={$appid}&secret={$secret}&js_code={$code}&grant_type=authorization_code";
        $userInfo = json_decode(file_get_contents($url),true);
        if (empty($userInfo['openid']))
            $this->error('注册失败');
        //根据获取的openid 来查看数据库 有的话更新 session_key 没有的话添加
        $user = \app\common\model\User::where('openid',$userInfo['openid'])->find();
        if ($user){
            $ret = $this->auth->direct($user['id']);
        }else {
            //获取access_token
            $mobile = $this->request->post('mobile'); //获取手机号
            $data = [
                'openid' => $userInfo['openid'],
            ];
            $ret = $this->auth->register($mobile, Random::alnum(), '', $mobile, $data);
        }
        if ($ret) {
            $info = $this->auth->getUserinfo();
            $data = ['userinfo' => $info];
            $this->success(__('Logged in successful'), $data);
        } else {
            $this->error($this->auth->getError());
        }
    }

PHP微信小程序授权登录  fastadmin可直接使用 需要在user表里增加openid字段 手机号如果不需要的话可以隐藏掉，更改里面的配置即可