php中分页排序问题

<style type="text/css">
.submit_back{
background:url("./images/fh.gif");
width:60px;
height:22px;
border:0px;
cursor:pointer;
margin-top:3px;
}
</style>
<!--查询数据 -->
<table border="1">
<tr align='center'><td>编号</td><td>词语</td><td>网址</td><td>时间</td><td>编辑</td></tr>
<?php
/*
* Created on 2010-4-17
*
* Order by Kove Wong
*/
$link=mysql_connect('localhost','root','123456');
mysql_select_db('replace');
mysql_query('set names gbk');

$Page_size=16;

$result=mysql_query('select * from phrase');
$count = mysql_num_rows($result);
$page_count = ceil($count/$Page_size);

$init=1;
$page_len=7;
$max_p=$page_count;
$pages=$page_count;

//判断当前页码
if(empty($_GET['page'])||$_GET['page']<0){
$page=1;
}else {
$page=$_GET['page'];
}

$offset=$Page_size*($page-1);
$sql="select * from phrase article order by id desc limit $offset,$Page_size";
$result=mysql_query($sql,$link);
while ($row=mysql_fetch_array($result)) {
?>
<tr>
<td><div align="center"><?php echo $row['id']; ?></div></td>
<td><div align="center"><?php echo $row['title']; ?></div></td>
<td><div align="center"><?php echo $row['url']; ?></div></td>
<td><div align="center"><?php echo $row['time']; ?></div></td>
<td><a href=delete.php?id=<?php echo $row['id']; ?>>删除</a>|
<a href=modify.php?id=<?php echo $row['id']; ?>>修改</a></td>
</tr>

<?php
}
$page_len = ($page_len%2)?$page_len:$pagelen+1;//页码个数
$pageoffset = ($page_len-1)/2;//页码个数左右偏移量

$key='<div class="page">';
$key.="<span>$page/$pages</span> "; //第几页,共几页
if($page!=1){
$key.="<a href=/"".$_SERVER['PHP_SELF']."?page=1/">第一页</a> "; //第一页
$key.="<a href=/"".$_SERVER['PHP_SELF']."?page=".($page-1)."/">上一页</a>"; //上一页
}else {
$key.="第一页 ";//第一页
$key.="上一页"; //上一页
}

if($pages>$page_len){
//如果当前页小于等于左偏移
if($page<=$pageoffset){
$init=1;
$max_p = $page_len;
}else{//如果当前页大于左偏移
//如果当前页码右偏移超出最大分页数
if($page+$pageoffset>=$pages+1){
$init = $pages-$page_len+1;
}else{
//左右偏移都存在时的计算
$init = $page-$pageoffset;
$max_p = $page+$pageoffset;
}
}
}
for($i=$init;$i<=$max_p;$i++){
if($i==$page){
$key.=' <span>'.$i.'</span>';
} else {
$key.=" <a href=/"".$_SERVER['PHP_SELF']."?page=".$i."/">".$i."</a>";
}
}

if($page!=$pages){
$key.=" <a href=/"".$_SERVER['PHP_SELF']."?page=".($page+1)."/">下一页</a> ";//下一页
$key.="<a href=/"".$_SERVER['PHP_SELF']."?page={$pages}/">最后一页</a>"; //最后一页
}else {
$key.="下一页 ";//下一页
$key.="最后一页"; //最后一页
}
$key.='</div>';
?>
<tr>
<td colspan="5"><div align="center"><?php echo $key?></div></td>
</tr>
</table>
<form action="index.html" method="post">
<div class="config_save"><input type="submit" name="Submit" class="submit_back" value=""></div>
</form>

这是分页中排序的问题的sql语句 ===select * from phrase article order by id desc limit $offset,$Page_size===