cf-platform/Application/Admin/Controller/MiniProgramController.class.php

<?php
namespace Admin\Controller;

use User\Api\UserApi;
use Com\Wechat;
use Com\WechatAuth;
use Base\Tool\TaskClient;

/**
 * 小程序
 */
class MiniProgramController extends \Think\Controller
{
    private $secert = 'fcd494b677bf0c9819e137538be93f10';
    private $appId = 'wxb7264c023beac13c';

    public function getOpenId() {
        $code = I('code', '');
        if (!$code) {
            return $this->ajaxReturn([
                'status' => 0,
                'msg' => 'code不能为空',
            ]);
        }

        $url = "https://api.weixin.qq.com/sns/jscode2session?appid={$this->appId}&secret={$this->secert}&js_code={$code}";
        $r = file_get_contents($url);
        $wxInfo = I('userInfo');
        $wxUser =json_decode($r, true);
        $exist = M('mini_program_user', 'tab_')->where([
            'openid' => $wxUser['openid']
        ])->find();
        if (!$exist) {
            $wxInfoDeJson = json_decode($wxInfo, true);
            M('mini_program_user', 'tab_')->add([
                'openid' => $wxUser['openid'],
                'unionid' => $wxUser['unionid'],
                'wx_json' => $wxInfo,
                'avatar' => $wxInfoDeJson['avatarUrl'],
                'nickname' => $wxInfoDeJson['nickName'],
                'city' => $wxInfoDeJson['city'],
                'province' => $wxInfoDeJson['province'],
                'country' => $wxInfoDeJson['country'],
                'create_time' => time()
            ]);
        }

        echo $r;
    }


}