PHP二维数组的分页【转】
方法一:
<?php
$arr_click = array(
array( 'clicks' => 3, 'clickDate' =>'2010-10-11' ),
array( 'clicks' => 2, 'clickDate' =>'2010-10-11' ),
array( 'clicks' => 3, 'clickDate' =>'2010-10-09' ),
array( 'clicks' => 1, 'clickDate' =>'2010-10-08' ),
);
$page = 2;
$indexinpage=2;
$newarr = array_slice($arr_click, ($page-1)*$indexinpage, $indexinpage);
?>
原理如下:
和分页原理一样
数组用 array_slice(array,offset,length) 函数在数组中根据条件取出一段值。
array:需要处理的数组
offset:取出元素的开始位置
length:返回数组的长度
在每页中改变 offset 的值就行了!
方法二:
例如:
<?php
$arr_click = array(
array( 'clicks' => 3, 'clickDate' =>'2010-10-11' ),
array( 'clicks' => 2, 'clickDate' =>'2010-10-11' ),
array( 'clicks' => 3, 'clickDate' =>'2010-10-09' ),
array( 'clicks' => 1, 'clickDate' =>'2010-10-08' ),
);
$size = 3;
$pnum = ceil(count($arr_click) / $size);
if(isset($_GET['page'])){
$page = intval($_GET['page']);
$page = $page > $pnum? $pnum: $page;
$page = $page < $pnum? 1: $page;
}else{
$page = 1;
}
for($i = 0; $i < $size; $i++){
if(!isset($arr_click[($page - 1) * $size + $i]))break;
echo '<pre>';
print_r($arr_click[($page - 1) * $size + $i]);
echo '<br>';
}
?>
<a href="ad.php?page=<?php echo $page - 1 > 0? $page - 1: 1; ?>">上一页</a>
<a href="ad.php?page=<?php echo $page + 1 < $pnum? $page + 1: $pnum; ?>">下一页</a>