帝国cms中用自定义的标签来实现[!--newsnav--] 的效果

//当前位置导航
function user_linknav($classid)
{
        global $empire,$dbtbpre;
        $query="select classname,bclassid,classpath from {$dbtbpre}enewsclass  where classid=".$classid;       
       
        $sql=$empire->query($query);
        //echo "<a href = /"//">首 页</a>";
        while($r=$empire->fetch($sql))
        {
                findparent($r[bclassid]);
                echo " > <a href =/"/".$r[classpath]."/">".$r[classname]."</a>";
        }
}
//当前位置导航，递归查询父栏目
function findparent($classid)
{
        global $empire,$dbtbpre;
        $query="select classname,bclassid,classpath from {$dbtbpre}enewsclass  where classid=".$classid;
       
        $sql=$empire->query($query);
       
        while($r=$empire->fetch($sql))
        {
                findparent($r[bclassid]);
                echo " > <a href =/"/".$r[classpath]."/">".$r[classname]."</a>";
        }
               
}