coupon-admin/app/controller/api/Area.php

<?php

namespace app\controller\api;

use think\facade\Db;
use app\model\Area as AreaModel;
/**
 * Area
 *
 * Class Business
 * @package app\controller\api
 */
class Area extends Base
{
    protected $noNeedLogin = [
        'index',
    ];

    /**
     * 根据上级行政代码 获取下级
     * */
    public function index()
    {
        $pcode = input("areaId/d",86);
        $filter = input("filter",false);
        return  json(AreaModel::getByPCode($pcode,$filter));
    }
}