infantServiceApi/app/system/controller/Pub.php

<?php
// +----------------------------------------------------------------------
// | [ WE CAN DO IT MORE SIMPLE  ]
// +----------------------------------------------------------------------
// | Copyright (c) 2018-2020 rights reserved.
// +----------------------------------------------------------------------
// | 
// +----------------------------------------------------------------------
// | Date: 2020-08-31 20:43
// +----------------------------------------------------------------------

namespace app\system\controller;


use app\BaseController;
use app\Request;
use app\system\controller\AuthController;
use library\services\UtilService;
use library\utils\Region;
use think\Cache;

class Pub extends  AuthController
{

    /**
     * 获取位置信息
     */
    public function getArea(){
        $tAr = [];
        $region = new Region;
        $data = $region->getLevel(1);
        foreach ($data as $v) {
            $d['label'] = $v['Name'];
            $d['value'] = $v['ID'];
            $d['children'] = [];
            $data2 = $region->getChild($v['ID']);
            foreach ($data2 as $v2) {
                $d2['label'] = $v2['Name'];
                $d2['value'] = $v2['ID'];
                $d2['children'] = [];
                $data3 = $region->getChild($v2['ID']);
                foreach ($data3 as $v3) {
                    $d3['label'] = $v3['Name'];
                    $d3['value'] = $v3['ID'];
                    $d2['children'][] = $d3;
                }
                $d['children'][] = $d2;
            }
            $tAr[] = $d;
        }
        return app('json')->success($tAr);
    }
}