PEAR探奇之PEAR::Pager [一]

PEAR探奇之PEAR::Pager

2005-09-29
Haohappy
<http://blog.csdn.net/haohappy2004>

在页面上显示大量数据,是WEB项目中很常见的一个作法,但限于屏幕的大小,为了便于用户阅读,我们通常需要将数据分页显示,所以分页功能是大部份项目不可缺少的。PEAR::Pager是一个功能强大的分页类,使用非常方便。

系统需求:

PHP4.3.* /PHP5

PEAR::Pager

PEAR::Pager有两种分页显示模式,一是Jumping,二是Sliding。两者有什么区别,我们来看两个例子:

Jumping.php

<?php

require_once'Pager/Pager.php';

$params=array(
'mode'=>'Jumping',
'perPage'=>3,
'delta'=>5,
'itemData'=>array('a','b','c','d','e','z','ty','xc','fg','fg','jk','hj','ty','xc','e','z','ty','xc','fg','fg','jk','hj','ty','xc')
);

echo
"<BR>当前分页模式:".$params['mode'];
echo
"<BR>每页显示数据条数:".$params['perPage'];
echo
"<BR>显示页数:".$params['delta'];
echo
"<BR>详细数据数组:";
print_r($params['itemData']);


$pager=&Pager::factory($params);
$data=$pager->getPageData();
$links=$pager->getLinks();


echo
"<P>最后效果:";
echo
$links['all'];
echo
$pager->linkTags;

echo
'<P>当前页的数据:';
echo
"<pre>";
print_r($data);
echo
"</pre>";

echo
"其它类方法得到的数据:<P>";
echo
'getCurrentPageID()...:';
var_dump($pager->getCurrentPageID());
echo
"<BR>";
echo
'getNextPageID()......:';
var_dump($pager->getNextPageID());
echo
"<BR>";
echo
'getPreviousPageID()..:';
var_dump($pager->getPreviousPageID());
echo
"<BR>";
echo
'numItems()...........:';
var_dump($pager->numItems());
echo
"<BR>";
echo
'numPages()...........:';
var_dump($pager->numPages());
echo
"<BR>";
echo
'isFirstPage()........:';
var_dump($pager->isFirstPage());
echo
"<BR>";
echo
'isLastPage().........:';
var_dump($pager->isLastPage());
echo
"<BR>";
echo
'isLastPageComplete().:';
var_dump($pager->isLastPageComplete());
echo
"<BR>";
echo
'$pager->range........:';
var_dump($pager->range);echo"<BR>";

?>

运行结果如下图:


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