Thinkphp5欄目管理的無限極分類

模型層代碼：

<?php

namespace app\admin\model;

use think\Model;

 

class Cate extends Model

{

    public functioncatetree(){

        $cateres =$this->select();

        return$this->sort($cateres);

    }

 

    public functionsort($data,$pid=0,$level=0){

        static $arr = array();

        foreach ($data as $k=> $v) {

           if($v['pid']==$pid){

                $v['level'] =$level;

                $arr[] = $v;

               $this->sort($data,$v['id'],$level+1);

            }

        }

        return $arr;

    }

}

注意：遞歸函數中定義數組用的是靜態數組，因爲要重複調用。