phpcms这么条件的栏目怎样调用呢

phpcms 这样条件的栏目怎样调用呢
条件是:parentid 等于1的所有栏目,我想调出来,不知如何写啊

我这样写:
{pc:content action="category" parentid="1" num="25" siteid="$siteid" order="listorder ASC"}
{loop $data $r}

{$r[catname]}

{/loop}
{/pc}
调不出来呢
------解决思路----------------------

	/**
	 * 栏目标签
	 * @param $data
	 */
	public function category($data) {
		$data['catid'] = intval($data['catid']);
		$array = array();
		$siteid = $data['siteid'] && intval($data['siteid']) ? intval($data['siteid']) : get_siteid();
		$categorys = getcache('category_content_'.$siteid,'commons');
		$site = siteinfo($siteid);
		$i = 1;
		foreach ($categorys as $catid=>$cat) {
			if($i>$data['limit']) break;
			if((!$cat['ismenu']) 
------解决思路----------------------
 $siteid && $cat['siteid']!=$siteid) continue;
			if (strpos($cat['url'], '://') === false) {
				$cat['url'] = substr($site['domain'],0,-1).$cat['url'];
			}
			if($cat['parentid']==$data['catid']) {
				$array[$catid] = $cat;
				$i++;
			}
		}
		return $array;
	}
	

从该标签实现看，没有parentid参数