php递归如何获取无限上级ID

CREATE TABLE `fcxlt_authuser` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `username` varchar(50) NOT NULL COMMENT '用户名',
  `passWord` varchar(64) NOT NULL COMMENT '密码',
  `nickname` varchar(50) NOT NULL COMMENT '昵称',
  `phone` varchar(20) DEFAULT NULL COMMENT '电话',
  `weixin_id` varchar(20) DEFAULT NULL COMMENT '微信号',
  `qrcode` varchar(200) DEFAULT NULL COMMENT '二维码Base64',
  `auth_id` int(11) NOT NULL,
  `is_authed` int(11) NOT NULL,
  `createtime` int(11) NOT NULL DEFAULT '1523156898',
  PRIMARY KEY (`id`),
  KEY `nickname` (`nickname`),
  KEY `auth_id` (`auth_id`,`id`,`username`,`nickname`) USING BTREE,
  KEY `username` (`username`,`is_authed`,`password`) USING BTREE
) ENGINE=InnoDB AUTO_INCREMENT=103 DEFAULT CHARSET=utf8mb4

public function getWinfo($id,$res=''){
        if($id>1){
            $infos = Db::name('authuser')
                ->alias('a')
                ->where('a.id',$id)
                ->join('fcxlt_authuser b', 'a.auth_id=b.id', 'LEFT')
                ->field('a.auth_id as id')
                ->find();
//        dump($infos);
            if(!empty($infos) && $infos['id']>1){
                $res.= $infos['id'].",";
                return $this->getWinfo($infos['id'],$res);
            }else{
                return $res;
            }
        }else{
            return $res;
        }
    }

$ids = $this->getWinfo($id,$res=$id.',');
$id_in =  substr($ids,0,strlen($ids)-1);
$id_arr = explode(',',$id_in);

function getTree($array, $pid =0, $level = 0){
        //声明静态数组,避免递归调用时,多次声明导致数组覆盖
        static $list = [];
        foreach ($array as $key => $value){
            //第一次遍历,找到父节点为根节点的节点 也就是pid=0的节点
            if ($value['pid'] == $pid){
                //父节点为根节点的节点,级别为0，也就是第一级
                $value['level'] = $level;
                //把数组放到list中
                $list[] = $value;
                //把这个节点从数组中移除,减少后续递归消耗
                unset($array[$key]);
                //开始递归,查找父ID为该节点ID的节点,级别则为原级别+1
                getTree($array, $value['id'], $level+1);
            }
        }
        return $list;
    }
    
    $array = getTree($array);
    foreach($array) as $value{
       echo str_repeat('--', $value['level']), $value['name'].'<br />';
    }
//输出结果 无限极分类实现ok

		public function convertNullToEmptyString($data) {
	        $data = collect($data)->map(function ($value){
	            if (is_null($value)) {
	                return '';
	            }
	            return is_array($value) ? $this->convertNullToEmptyString($value) : $value;
	        });
	        return $data->toArray();
	    }
		$data = array(
            [
                'name' => 'shawn',
                'email' => 'shw@qq.com',
                'company' => 'aa'
            ],
            [
                'name' => '111',
                'email' => 'ssdfas@dasf',
                'company' => 'ssdfa'
            ]
        );
        var_dump($this->convertNullToEmptyString($data));
        die;