【php实战项目训练】——thinkPhP的登录与退出功能的实现，让登录退出畅通无阻

namespace app\index\controller;
use think\Controller;
use think\Request;

class User extends Controller
{
    public function login()
    {
        if (Request::instance()->isPost()) {
            $data = input('post.');
            $validate = validate('User');
            if (!$validate->check($data)) {
                return $this->error($validate->getError());
            }
            $userModel = model('User');
            $user = $userModel->where('username', $data['username'])->find();
            if (!$user || $user['password'] != md5($data['password'])) {
                return $this->error('用户名或密码错误');
            }
            session('user', $user, 'user');
            return $this->success('登录成功', 'index/index');
        }
        return $this->fetch();
    }

    public function logout()
    {
        session(null, 'user');
        return $this->success('退出成功', 'user/login');
    }
}