note 96122 deleted from function.file-get-contents by danbrown
| From: | danbrown@php.net | Date: | Wed, 10 Feb 2010 02:39:10 +0000 |
| Subject: | note 96122 deleted from function.file-get-contents by danbrown | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-165817@lists.php.net to get a copy of this message | ||
Note Submitter: e-mike
----
Simple cache (for more advanced see Zend Cache)
<?php
/* @param filename string
* @param data mixed[optional] <p>if data given always refresh</p>
* @param lifetime int[optional] <p>seconds</p>
* @return mixed Returns sting on file exist and not expired or false on file not exist or expired
*/
function file_cache_contents($filename, $data = NULL, $lifetime = 3600)
{
$lifetime = date('Y-m-d H:i:s', time() - $lifetime);
/* If data > always set file and return data
* If exists and not expired > get and return data
* Other posibilities > return false
*/
if ( ! is_null($data))
{
file_put_contents($filename, $data);
return $data;
}
else if (file_exists($filename) && date('Y-m-d H:i:s', filemtime($filename)) >
$lifetime)
{
return file_get_contents($filename);
}
return false;
}
?>