<?php
namespace WeChat\Controller;
use Think\Controller;

class BaseController extends Controller
{
    protected $user_id;

    protected function _initialize(){

        if(empty($_SESSION[\'user\'][\'id\']))
        {
            $code = $_GET[\'code\'];
            if($code){
                $url = "https://api.weixin.qq.com/sns/oauth2/access_token";
            
                $data[\'appid\'] = C(\'WX_APPID\');
                $data[\'secret\'] = C(\'WX_SECRET\');
                $data[\'code\'] = $code;
                $data[\'grant_type\'] = "authorization_code";
                
                $httpstr = http($url, $data, \'GET\');
                $steam=json_decode($httpstr);
                $_SESSION[\'user\'][\'openid\'] = $steam->openid;
                $_SESSION[\'user\'][\'token\'] = $steam->access_token;

                $member_model = D(\'Member\');

                $result = $member_model->where([\'openid\' => $steam->openid])->find();
                
                if(!$result){

                    $member_data = get_wechat_user_info($steam->access_token, $steam->openid);
                    if($member_data->errcode)
                    {
                        echo \'用户信息错误,请重新加载\';return;
                    }else{
                        $add_wechat_member = $member_model->add([
                            \'openid\' => $member_data->openid,
                            \'user_name\' => $member_data->nickname,
                            \'sex\' => $member_data->sex,
                            \'create_time\' => time(),
                            \'headimgurl\' => $member_data->headimgurl
                        ]);

                        $_SESSION[\'user\'][\'openid\'] = $member_data->openid;
                        $_SESSION[\'user\'][\'id\'] = $this->user_id = $add_wechat_member;
                        $_SESSION[\'user\'][\'user_name\'] = $member_data->nickname;
                        $_SESSION[\'user\'][\'sex\'] = $member_data->sex;
                        $_SESSION[\'user\'][\'headimgurl\'] = $member_data->headimgurl;
                        $_SESSION[\'user\'][\'time\'] = time();
                    }
                }else{

                    $_SESSION[\'user\'][\'openid\'] = $result[\'openid\'];
                    $_SESSION[\'user\'][\'id\'] = $this->user_id = $result[\'id\'];
                    $_SESSION[\'user\'][\'user_name\'] = $result[\'user_name\'];
                    $_SESSION[\'user\'][\'sex\'] = $result[\'sex\'];
                    $_SESSION[\'user\'][\'headimgurl\'] = $result[\'headimgurl\'];
                    $_SESSION[\'user\'][\'time\'] = time();
                }

            }else{
                $appid = C(\'WX_APPID\');
                $redirect_uri = "http://pttest.itsumy.com".$_SERVER[\'REQUEST_URI\'];
                $url = "https://open.weixin.qq.com/connect/oauth2/authorize?appid=".$appid."&redirect_uri=".$redirect_uri."&response_type=code&scope=snsapi_userinfo&state=STATE#wechat_redirect";
                header("Location:".$url);
            }
        }
    }
}

 

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本文链接：https://www.cnblogs.com/zjj1990/p/9006936.html