何位看下这个循环嵌套数组有误吗

哪位看下这个循环嵌套数组有误吗？

function get_number_list($cat_id)<br />{<br /> $sql=$GLOBALS['db']->query("select * from ".$GLOBALS['db']->table('dept_category')." order by sort");<br /> while($row=$GLOBALS['db']->fetch_array($sql)){<br />   if($row){<br />   $result=$GLOBALS['db']->query("select * from ".$GLOBALS['db']->table('number')." where dept=".$row['cat_id']." and cat_id='$cat_id' order by sort");<br />	 while($rows=$GLOBALS['db']->fetch_array($result)){<br />	    if($rows){<br />	   $number_show[] = array(<br />	          'id' => $rows['id'],<br />			  'title' => $rows['title'],<br />			  'user' => $rows['username']<br />	   );<br />	  }<br />	 }<br />        $cat_name[]=array(<br />	      'sort' => $row['sort'],<br />	      'cat_name' => $row['cat_name'],<br />		  'topid' => $number_show<br />	 );<br />     }<br />   }<br />   return $cat_name;<br /> }

这个是源代码，这是截图：
这个是静态页面代码：

<table width="99%" align="center" cellpadding="0" cellspacing="1" bgcolor="#CCCCCC"><br />                             {foreach from=$dept_list name=dept_list item=dept}<br />							  <tr bgcolor="#FFFFFF"><br />                                <td    style="max-width:90%" colspan="2" class="bumen"> {$dept.cat_name}</td><br />                                </tr><br />							{foreach from=$dept.topid item=number}<br />                              <tr bgcolor="#FFFFFF"><br />                                <td width="46%" height="25" align="center">{$number.user}</td><br />                                <td width="54%" align="center">{$number.title}</td><br />                              </tr><br />							    {/foreach}<br />							  {/foreach}<br />                            </table>

------解决方案--------------------
因为你number_show没有清空，第一个记录获取到的一直在，所以后面就都有了。
------解决方案--------------------

function get_number_list($cat_id)<br />{<br /> $sql=$GLOBALS['db']->query("select * from ".$GLOBALS['db']->table('dept_category')." order by sort");<br /> while($row=$GLOBALS['db']->fetch_array($sql)){<br />   if($row){<br />   $result=$GLOBALS['db']->query("select * from ".$GLOBALS['db']->table('number')." where dept=".$row['cat_id']." and cat_id='$cat_id' order by sort");<br />     while($rows=$GLOBALS['db']->fetch_array($result)){<br />        if($rows){<br />       $number_show[] = array(<br />              'id' => $rows['id'],<br />              'title' => $rows['title'],<br />              'user' => $rows['username']<br />       );<br />      }<br />     }<br />        $cat_name[]=array(<br />          'sort' => $row['sort'],<br />          'cat_name' => $row['cat_name'],<br />          'topid' => $number_show<br />     );<br />    unset($number_show);<br />     }<br />   }<br />   return $cat_name;<br />   unset($cat_name);<br /> }

利用unset对数组进行清空。