帝国CMS封面页循环子栏目并且调用子栏目下的信息

<?php
$cid = $GLOBALS['navclassid'];
$fid = $class_r[$cid]['bclassid']; 
$class_sql=$empire->query('select * from '.$dbtbpre.'enewsclass where bclassid='.$cid.' order by myorder limit 3');
while($class_row=$empire->fetch($class_sql)){
?>
<section class="mod">
<div class="titleC">
<h5><?=$class_row[classname]?></h5>
<a href="<?=$class_row[classurl]?>" target="_blank" class="more2">更多 <i class="fa-angle-double-right"></i></a>
</div>
<ul class="article-list">
<?
$aa=$empire->query("select * from {$dbtbpre}ecms_news where classid='$class_row[classid]' order by newstime limit 5");
while($ab=$empire->fetch($aa)){
?>
<li><u class="icon"></u><a href="<?=$ab[titleurl]?>" target="_blank"><?=$ab[title]?></a></li>
<?
}
?>
</ul>
</section>
<?}?>