tp6把对象转换为数组

<?php
namespace app\index\controller;

use app\BaseController;
use think\facade\Db;
use app\model\Aaa;
use think\facade\Cache;
class Index extends BaseController
{
    public function hello()
    {$user1=Aaa::find(3);

        halt($user1->toArray());


    }
}