tp5无限极分类

$cate = new CateModel();
$res = $cate->catetree();

   public function catetree()
    {
        $cateres = $this->select();
        return $this->sort($cateres);
    }

    public function sort($data,$pid=0,$level=0)
    {
        static $arr = array();
        foreach ($data as $key => $v) {
            if($v['pid'] == $pid){
                $v['level'] = $level;
                $arr[] = $v;
                $this->sort($data,$v['id'],$level+1);
            }
        }
        return $arr;
    }

3.视图输出

<!--  表格显示 -->
{volist name = "res" id = "vo"}
<tr>
    <td align="center">{$vo.id}</td>
    <td align="left"><?php echo str_repeat('--------|',$vo['level'])?>{$vo.catename}</td>
    <td align="center">
        <!-- /以数组的方式传送参数id，用$vo['参数']这种方式/ -->

        <a href="{:url('edit',array('id'=>$vo['id']))}" class="btn btn-primary btn-sm shiny">
        <span class="glyphicon glyphicon-edit"></span>&nbsp;编辑
        </a>
        <a href="{:url('del',array('id'=>$vo['id']))}" onClick="window.confirm('确实要删除吗','index.html')" class="btn btn-danger btn-sm shiny">
        <span class="glyphicon glyphicon-trash"></span>&nbsp;删除
        </a>
    </td>
</tr>
{/volist}