thinkphp 数据嵌套输出

thinkphp 数据嵌套输出

  $list=Db::name('a')->field('id,xxx,...')->group('rwid')->select();

  $data['list']=[];
  foreach ( $list as $v){
     $part=Db::name('a')->field('id,xxx,...')->where('rwid',$v['rwid'])->select();
     foreach ( $part as $v1){
       $v1['partsn']=Db::name('b')->field('id,partsn')->where('apid',$v1['id'])->select();
       $v['part'][]=$v1;
     }
　　　$data['list'][]=$v;
   }

dump($data);