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php ob_start() ob_end_flush() simple application of caching technology_PHP tutorial

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Release: 2016-07-20 11:10:34
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This article introduces a simple introduction to PHP - a simple application of caching technology. Friends in need can take a look. Here is an example using ob_start(); ob_end_flush();.

 代码如下 复制代码

// 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();
?>

output all your html here.

// 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();
?>

www.bkjia.comtruehttp: //www.bkjia.com/PHPjc/444708.htmlTechArticleThis article introduces a simple introduction to PHP - simple application of caching technology. Friends in need can take a look Oh, here is an example using ob_start(); ob_end_flush();. Code...
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