今天在用phpcms写博客需要用到当前位置，本想自己写一个函数在实现当前位置的，结果发现phpcms已经内定写好了一个函数直接调用即可{catpos($catid)}
相关函数：
function catpos($catid, $urlrule = '')
{
global $CATEGORY;
if(!isset($CATEGORY[$catid])) return '';
$pos = '';
$arrparentid = array_filter(explode(',', $CATEGORY[$catid]['arrparentid'].','.$catid));
foreach($arrparentid as $catid)
{
if($urlrule) eval("$url = "$urlrule";");
else $url = $CATEGORY[$catid]['url'];
$pos .= ''.$CATEGORY[$catid]['catname'].'';
}
return $pos;
}
