本文介绍如何使用 PEAR::Pager 组件实现 PHP 分页功能。通过示例代码展示了配置参数、获取分页链接及数据的过程，并提供了运行结果。
一、安装或下载
安装就通过pear install Pager即可，如图所示：
如果是下载的话就到http://pear.php.net/package/Pager/download上下载
二、存放目录结构
三、程序代码
<?php
require_once 'Pager/Pager.php';
//create dummy array of data
$myData = array();
for ($i=0; $i<200; $i++) {
$myData[] = $i;
}
$params = array(
'itemData' => $myData,
'perPage' => 10,
'delta' => 8, // for 'Jumping'-style a lower number is better
'append' => true,
//'separator' => ' | ',
'clearIfVoid' => false,
'urlVar' => 'entrant',
'useSessions' => true,
'closeSession' => true,
//'mode' => 'Sliding', //try switching modes
'mode' => 'Jumping',
);
$pager = & Pager::factory($params);
$page_data = $pager->getPageData();
$links = $pager->getLinks();
$selectBox = $pager->getPerPageSelectBox();
?>
<html>
<head>
<title>new PEAR::Pager example</title>
</head>
<body>
<table border="1" width="500" summary="example 1">
<tr>
<td colspan="3" align="center">
<?php echo $links['all']; ?>
</td>
</tr>
<tr>
<td colspan="3">
<pre><?php print_r($page_data); ?></pre>
</td>
</tr>
</table>
<h4>Results from methods:</h4>
<pre>
getCurrentPageID()...: <?php var_dump($pager->getCurrentPageID()); ?>
getNextPageID()......: <?php var_dump($pager->getNextPageID()); ?>
getPreviousPageID()..: <?php var_dump($pager->getPreviousPageID()); ?>
numItems()...........: <?php var_dump($pager->numItems()); ?>
numPages()...........: <?php var_dump($pager->numPages()); ?>
isFirstPage()........: <?php var_dump($pager->isFirstPage()); ?>
isLastPage().........: <?php var_dump($pager->isLastPage()); ?>
isLastPageComplete().: <?php var_dump($pager->isLastPageComplete()); ?>
$pager->range........: <?php var_dump($pager->range); ?>
</pre>
<hr />
<form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="GET">
Select how many items per page should be shown:<br />
<?php echo $selectBox; ?>
<input type="submit" value="submit" />
</form>
<hr />
</body>
</html>
四、运行结果
安装就通过pear install Pager即可，如图所示：
如果是下载的话就到http://pear.php.net/package/Pager/download上下载
二、存放目录结构
三、程序代码
<?phprequire_once 'Pager/Pager.php';//create dummy array of data$myData = array();for ($i=0; $i<200; $i++) { $myData[] = $i;}$params = array( 'itemData' => $myData, 'perPage' => 10, 'delta' => 8, // for 'Jumping'-style a lower number is better 'append' => true, //'separator' => ' | ', 'clearIfVoid' => false, 'urlVar' => 'entrant', 'useSessions' => true, 'closeSession' => true, //'mode' => 'Sliding', //try switching modes 'mode' => 'Jumping',);$pager = & Pager::factory($params);$page_data = $pager->getPageData();$links = $pager->getLinks();$selectBox = $pager->getPerPageSelectBox();?><html><head><title>new PEAR::Pager example</title></head><body><table border="1" width="500" summary="example 1"> <tr> <td colspan="3" align="center"> <?php echo $links['all']; ?> </td> </tr> <tr> <td colspan="3"> <pre><?php print_r($page_data); ?></pre> </td> </tr></table><h4>Results from methods:</h4><pre>getCurrentPageID()...: <?php var_dump($pager->getCurrentPageID()); ?>getNextPageID()......: <?php var_dump($pager->getNextPageID()); ?>getPreviousPageID()..: <?php var_dump($pager->getPreviousPageID()); ?>numItems()...........: <?php var_dump($pager->numItems()); ?>numPages()...........: <?php var_dump($pager->numPages()); ?>isFirstPage()........: <?php var_dump($pager->isFirstPage()); ?>isLastPage().........: <?php var_dump($pager->isLastPage()); ?>isLastPageComplete().: <?php var_dump($pager->isLastPageComplete()); ?>$pager->range........: <?php var_dump($pager->range); ?></pre><hr /><form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="GET">Select how many items per page should be shown:<br /><?php echo $selectBox; ?> <input type="submit" value="submit" /></form><hr /></body></html>四、运行结果
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