zc100/application/admin/controller/Region.php

<?php
/**
 * 易优CMS
 * ============================================================================
 * 版权所有 2016-2028 海南赞赞网络科技有限公司，并保留所有权利。
 * 网站地址: http://www.eyoucms.com
 * ----------------------------------------------------------------------------
 * 如果商业用途务必到官方购买正版授权, 以免引起不必要的法律纠纷.
 * ============================================================================
 * Author: 小虎哥 <1105415366@qq.com>
 * Date: 2018-4-3
 */

namespace app\admin\controller;

use think\Page;

class Region extends Base
{
    /**
    * 获取子类列表
    */  
    public function ajax_get_region($pid = 0, $level = 2, $region_id = '', $text = '--请选择--'){
        $data = model('Region')->getList($pid,'*','',$level);
        $html = "<option value=''>".urldecode($text)."</option>";
        foreach($data as $key=>$val){
            if ($val['id'] == $region_id) {
                unset($data[$key]);
                continue;
            }
            $html.="<option value='".$val['id']."'>".$val['name']."</option>";
        }
        $isempty = 0;
        if (empty($data)){
            $isempty = 1;
        }
        $this->success($html,'',['isempty'=>$isempty]);

    }
}