thinkphp 微信获取用户信息

<?php
namespace app\index\controller;

use think\Controller;
use think\Request;

class Wechat extends Controller
{
    public function getUserInfo(Request $request)
    {
        $code = $request->get('code');
        if (!$code) {
            // 重定向到微信授权页面
            $redirect_uri = urlencode('http://yourdomain.com/index/wechat/getUserInfo');
            $url = "https://open.weixin.qq.com/connect/oauth2/authorize?appid=YOUR_APPID&redirect_uri={$redirect_uri}&response_type=code&scope=snsapi_userinfo&state=STATE#wechat_redirect";
            header("Location: {$url}");
            exit;
        }

        // 获取 access_token 和 openid
        $token_url = "https://api.weixin.qq.com/sns/oauth2/access_token?appid=YOUR_APPID&secret=YOUR_APPSECRET&code={$code}&grant_type=authorization_code";
        $token_data = json_decode(file_get_contents($token_url), true);
        if (isset($token_data['access_token']) && isset($token_data['openid'])) {
            $access_token = $token_data['access_token'];
            $openid = $token_data['openid'];

            // 获取用户信息
            $user_info_url = "https://api.weixin.qq.com/sns/userinfo?access_token={$access_token}&openid={$openid}&lang=zh_CN";
            $user_info = json_decode(file_get_contents($user_info_url), true);
            if (isset($user_info['openid'])) {
                // 处理用户信息
                $this->assign('user_info', $user_info);
                return $this->fetch();
            }
        }

        return "获取用户信息失败";
    }
}