php 无限级分类

 private function GetTree($arr,$pid,$step){
        global $tree;
        foreach($arr as $key=>$val) {
            if($val['parent_id'] == $pid) {

                $flg = str_repeat('|---',$step);
                $val['label_name'] = $flg.$val['label_name'];
                $tree[] = $val;
                $this->GetTree($arr , $val['id'] ,$step+1);

            }
        }
        return $tree;
    }

 

$this->GetTree($arr,0,1);

 

附上原博客链接 https://blog.csdn.net/u012767761/article/details/82777781