帝国CMS灵动标签调用一级栏目和子栏目，也可以无穷嵌套调用三、四...级栏目，并推论当前栏目高亮显示。

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<?php
$sql=$empire->query("select classid,classname,bname,islast from {$dbtbpre}enewsclass where bclassid=0 and showclass=0 order by myorder,myorder asc");
    while($s=$empire->fetch($sql)){
            $tclass="";
        $fr=explode('|',$class_r[$GLOBALS[navclassid]][featherclass]);
        $topbclassid=$fr[1]?$fr[1]:$GLOBALS[navclassid];
        if($topbclassid==$s[classid]){
                $tclass='current';
        }
        $classurl=sys_ReturnBqClassname($s,9);
        
        echo ''.$s[bname].'';
        if(!$s[islast]){
                $sql2=$empire->query("select classid,classname,bname from {$dbtbpre}enewsclass where bclassid=$s[classid] and showclass=0 order by myorder,myorder asc");
            $str="";
            while($s2=$empire->fetch($sql2)){
                                $tclass2="";
                                if($GLOBALS[navclassid]==$s2[classid]){
                                        $tclass2='curr';
                                }
                    $classurl2=sys_ReturnBqClassname($s2,9); 
                    $str.=''.$s2[bname].'';
            }
            echo ''.$str.'