Home >Backend Development >PHP Tutorial >php ob_start() ob_end_flush() simple application of caching technology_PHP tutorial
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(); ?> |