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如今的php编程中，对缓存的需求越来越大了，哪怕是一个很小的项目，有了缓存，那就是别人眼中的大牛。本文为大家介绍一个简单的缓存实现代码，供初学的朋友参考吧。
代码如下：
<?php
/*
* php 简单缓存
* by http://bbs.it-home.org
**/
// define the path and name of cached file
$cachefile = 'cached-files/'.date('M-d-Y').'.php';
// define how long we want to keep the file in seconds. I set mine to 5 hours.
$cachetime = 18000;
// Check if the cached file is still fresh. If it is, serve it up and exit.
if (file_exists($cachefile) && time() - $cachetime < filemtime($cachefile)) {
include($cachefile);
exit;
}
// if there is either no file OR the file to too old, render the page and capture the HTML.
ob_start();
?>
<html>
output all your html here.
</html>
<?php
// We're done! Save the cached content to a file
$fp = fopen($cachefile, 'w');
fwrite($fp, ob_get_contents());
fclose($fp);
// finally send browser output
ob_end_flush();
?>Salin selepas log masuk 查看详细：http://wesbos.com/simple-php-page-caching-technique/ |
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