ulthon_admin/extend/base/admin/model/SystemNodeBase.php

<?php

namespace base\admin\model;

use app\common\model\TimeModel;

class SystemNodeBase extends TimeModel
{
    protected $deleteTime = false;

    public function getNodeTreeList()
    {
        $list = $this->select()->toArray();
        $list = $this->buildNodeTree($list);

        return $list;
    }

    protected function buildNodeTree($list)
    {
        $newList = [];
        $repeatString = '&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;';
        foreach ($list as $vo) {
            if ($vo['type'] == 1) {
                $newList[] = $vo;
                foreach ($list as $v) {
                    if ($v['type'] == 2 && strpos($v['node'], $vo['node'] . '/') !== false) {
                        $v['node'] = "{$repeatString}├{$repeatString}" . $v['node'];
                        $newList[] = $v;
                    }
                }
            }
        }

        return $newList;
    }
}