thinkphp-butter/app/service/ZdXzqService.php

<?php

namespace app\service;

use app\model\ZdXzq;

class ZdXzqService
{
    public static function getXzq(){
       $condition[] = ["xzqdm","like","%"."00000"];
       $condition[]=["xzqdm","<>","340000000"]; //去除安徽省选项
       $city =  (new ZdXzq)->field("xzqdm as id, xzqmc as name")->where($condition)->select();
       for ($i=0;$i<count($city);$i++){

           $map[$i][]=["xzqdm","NOTLIKE","%"."00000"];
           $map[$i][]=["xzqdm","like",[substr($city[$i]["id"],0,4)."%"."000"],"AND"];

           $city[$i]["children"]=(new ZdXzq)->field("xzqdm as id, xzqmc as name")->where($map[$i])->select();
           for ($j=0;$j<count($city[$i]["children"]);$j++){
               $maptown[$j][$i][]=["xzqdm","NOTLIKE","%"."000"];
               $maptown[$j][$i][]=["xzqdm","LIKE",substr($city[$i]["children"][$j]["id"],0,6)."%","AND"];
               $city[$i]["children"][$j]["children"]=(new ZdXzq)->field("xzqdm as id, xzqmc as name")->where($maptown[$j][$i])->select();
           }
       }

       return $city;
    }
    public static function getXzqDetail($xzqdm){
       return ZdXzq::where("xzqdm",$xzqdm)->find();
        
    }

}