ThinkPHP6第三方登录集成：实现一键登录功能

composer create-project topthink/think tp6

# 微信登录配置
WECHAT_APPID=YOUR_WECHAT_APPID
WECHAT_SECRET=YOUR_WECHAT_SECRET
WECHAT_REDIRECT_URI=YOUR_REDIRECT_URI

php think make:controller ThirdLogin

<?php
namespace appcontroller;

use thinkController;
use thinkacadeConfig;

class ThirdLogin extends Controller
{
    // 微信登录
    public function wechatLogin()
    {
        // 构造授权请求URL
        $redirectUri = urlencode(Config::get('app.url') . '/thirdLogin/wechatCallback');
        $url = "https://open.weixin.qq.com/connect/oauth2/authorize?appid=" . 
               Config::get('wechat.appid') . 
               "&redirect_uri=" . 
               $redirectUri .
               "&response_type=code&scope=snsapi_base&state=STATE#wechat_redirect";
        
        // 跳转到微信授权页面
        return redirect($url);
    }

    // 微信登录回调
    public function wechatCallback()
    {
        // 获取回调时微信返回的code
        $code = input('get.code');
        
        // 根据code获取access_token
        // ...
        
        // 根据access_token获取用户信息
        // ...
        
        // 登录逻辑
        // ...
    }
}

<?php
use thinkacadeRoute;

// 第三方登录
Route::get('login/wechat', 'ThirdLogin/wechatLogin');
Route::get('thirdLogin/wechatCallback', 'ThirdLogin/wechatCallback');

<button onclick="redirect()">微信登录</button>

<script>
    function redirect() {
        window.location.href = '/login/wechat';
    }
</script>