PHP配列のページングを実装する方法

<?php
$arr_click = array(
array( &#39;clicks&#39; => 3, &#39;clickDate&#39; =>&#39;2010-10-11&#39; ),
array( &#39;clicks&#39; => 2, &#39;clickDate&#39; =>&#39;2010-10-10&#39; ),
array( &#39;clicks&#39; => 3, &#39;clickDate&#39; =>&#39;2010-10-09&#39; ),
array( &#39;clicks&#39; => 4, &#39;clickDate&#39; =>&#39;2010-10-08&#39; ),
array( &#39;clicks&#39; => 5, &#39;clickDate&#39; =>&#39;2010-10-13&#39; ),
array( &#39;clicks&#39; => 7, &#39;clickDate&#39; =>&#39;2010-10-14&#39; ),
array( &#39;clicks&#39; => 6, &#39;clickDate&#39; =>&#39;2010-10-15&#39; ),
array( &#39;clicks&#39; => 9, &#39;clickDate&#39; =>&#39;2010-10-16&#39; ),
);
if(!isset($_GET[&#39;page&#39;]))
{
  $page = 1;
}
else
{
 $page=$_GET[&#39;page&#39;];
}
$size=3;//每页显示的记录数
$pnum = ceil(count($arr_click) / $size); //总页数，ceil()函数用于求大于数字的最小整数
//用array_slice(array,offset,length) 函数在数组中根据条件取出一段值;array(数组),offset(元素的开始位置),length(组的长度)
$newarr = array_slice($arr_click, ($page-1)*$size, $size);
for($i=0;$i<count($newarr);$i++)
{
 echo $newarr[$i][&#39;clickDate&#39;]."<br/>";
}
?>
<?php
if(!isset($_GET[&#39;page&#39;]) || $_GET[&#39;page&#39;]<=1){
?>
<a href="11111111111111.php?page=1">上一页</a>
<?php }else{ ?>
<a href="11111111111111.php?page=<?php echo $page-1;?>">上一页</a>
<?php } ?>
<?php if($_GET[&#39;page&#39;]>=$pnum) {?>
<a href="11111111111111.php?page=<?php echo $pnum;?>">下一页</a>
<?php }else{ ?>
<a href="11111111111111.php?page=<?php echo $page+1;?>">下一页</a>
<?php } ?>