Laravel ajax三级联动

//省份
Route::get(‘province‘,‘PortController@province‘);

//市
Route::get(‘city‘,‘PortController@city‘);

//区
Route::get(‘area‘,‘PortController@area‘);

php
namespace App\Http\Controllers;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\DB;
class PortController extends Controller
{

    //查询省份
    public function province(Request $request)
    {
        $province =  DB::table(‘china_area‘)->where(‘parent_id‘,1)->get();
        return view(‘port/china‘,[‘province‘=>$province]);
    }

    //查询市
    public function city(Request $request)
    {
        $province = $request[‘province‘];
      

        $city = DB::table(‘china_area‘)->where(‘parent_id‘,‘=‘,$province)->get()->toArray();
      
         
        return json_encode([‘status‘ => 0, ‘data‘ => $city]);
    }

    //查询区
    public function area(Request $request)
    {
        $city = $request[‘city‘];
        $area = DB::table(‘china_area‘)->where(‘parent_id‘,‘=‘,$city)->get()->toArray();
        return json_encode([‘status‘ => 0, ‘data‘ => $area]);
    }
}

==请选择省==
            @foreach($province as $item)
            {{ $item->name }}
            @endforeach
        ==市====区/县==