二个foeache 实现数据的递归

 

 

 $type =Db::name('shop_goods_spu_specification')//查询商品规格维度
         ->field('id,parent_id,title')
         ->where('spu_id',$goods_id)
         ->select();
     $type1=Db::name('shop_goods_spu_specification_sub')//查询商品规格维度详情
         ->field('id,spec_id,title')
         ->where('id','in',$arr)
         ->select();
     //dump($arr);die();
     $arr=[];//处理数据进行组合数组进行返回
     foreach ($type1 as &$v){
         $arr[$v['spec_id']][]=$v;
     }
     foreach ($type as &$value){
         $value['son']=$arr[$value['id']];
     }
    // dump($type);die();
return $type; //返回数据