无限极分类获取数据方法

<?php
namespace app\admin\model;

use think\Model;

class GoodsCate extends Model
{

    //获取分类树
    public function get_tree ($pid = 0,$field = ‘*‘){
        $list = self::all(function($query)use($pid,$field){
            $query->where([‘pid‘=>$pid])->field($field);
        });
        foreach ($list as &$v){
            if(self::get([‘pid‘=>$v[‘id‘]])){
                $v[‘child‘] = self::get_tree($v[‘id‘],$field);
            }
        }
        return $list;
    }

    //根据id获取所有层级父类id
    public static function get_parent ($id = 0){
        $list = self::all();
        $arr = array_column($list,‘pid‘,‘id‘);
        $ids[] = $id;
        while($arr[$id]) {
            $id = $arr[$id];
            $ids[] = $id;
        }
        return $ids;
    }

    //根据id获取所有子级id
    public static function get_child ($id,&$ids=[]){
        array_push($ids,$id);
        $list = self::where(‘pid‘,$id)->column(‘id‘);
        foreach ($list as $v)
        {
            self::get_child($v,$ids);
        }
        return $ids;
    }

    //根据id获取当前数据及其子类列表
    public function get_list ($id=0,$field=‘*‘,$where){
        $info = self::where(‘id‘,$id)->alias(‘goods_cate‘)->field($field)->find();
        if($info)
        {
            $list[] = $info;
        }
        $list = $this->get_data($id,$list,$field,$where);
        return $list;
    }

    public function get_data($id,&$list=[],$field,$where)
    {
        $child = self::where(‘pid‘,‘in‘,$id)->alias(‘goods_cate‘)->field($field)->where($where)->select();
        if($child) {
            foreach ($child as $item) {
                $list[] = $item;
                self::get_data($item[‘id‘], $list,$field,$where);
            }
        }
        return $list;
    }

}

原文地址：https://www.cnblogs.com/ivy-zheng/p/12146254.html