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Cache : create a class for managing cache

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Dany wm 2024-02-26 20:26:07 +01:00 • committed by sparkyx
parent 9cdef09d8c
commit a124cf0a0e
4 changed files with 151 additions and 23 deletions
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include/lib/file_cache.class.php Normal file
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<?php
/*
* This file is part of noalyss.
*
* noalyss is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* noalyss is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with NOALYSS; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
// Copyright Author Dany De Bontridder danydb@aevalys.eu 2002-2024
/*!\file
* \brief
*/
/*!
*
* \class
*
* \brief
*/
namespace Noalyss;
class File_Cache
{
/**
* @brief Check if the file exists, if yes then read otherwise take it from the url,
* @param $url url to the file to get the content
* @param $filename fullpath to the filename of the cache
* @param $time_cache_second valid time, if the cache is older , than reload it from the url
* @return void
*/
public static function get_content($url, $filename, $time_cache_second)
{
$content = null;
if (file_exists($filename)) {
$date_time = new \DateTime();
$file_tmstamp = filemtime($filename);
$delta = $date_time->getTimestamp() - $file_tmstamp;
// if file too old , refresh it
if ($delta > $time_cache_second) {
$content = file_get_contents($url);
$f_file = fopen($filename, "w+");
if ( $f_file == false ) {
return $content;
}
fwrite($f_file, $content);
fclose($f_file);
} else {
$content = file_get_contents($filename);
}
} else {
$content = @file_get_contents($url);
$f_file = fopen($filename, "w+");
if ( $f_file == false ) {
return $content;
}
fwrite($f_file, $content);
fclose($f_file);
}
return $content;
}
}