哪位看下这个循环嵌套数组有误吗？

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

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

while($row=$GLOBALS['db']->fetch_array($sql)){   if($row){

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