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<?php
/*
* Copyright (c) 2010-2012 Tinyboard Development Group
*/
if (realpath($_SERVER['SCRIPT_FILENAME']) == str_replace('\\', '/', __FILE__)) {
// You cannot request this file directly.
exit;
}
class Cache {
private static $cache;
public static function init() {
global $config;
switch ($config['cache']['enabled']) {
case 'memcached':
self::$cache = new Memcached();
self::$cache->addServers($config['cache']['memcached']);
break;
case 'php':
self::$cache = Array();
break;
}
}
public static function get($key) {
global $config, $debug;
$key = $config['cache']['prefix'] . $key;
$data = false;
switch ($config['cache']['enabled']) {
case 'memcached':
if (!self::$cache)
self::init();
$data = self::$cache->get($key);
break;
case 'apc':
$data = apc_fetch($key);
break;
case 'xcache':
$data = xcache_get($key);
break;
case 'php':
$data = isset(self::$cache[$key]) ? self::$cache[$key] : false;
break;
}
// debug
if ($data !== false && $config['debug']) {
$debug['cached'][] = $key;
}
return $data;
}
public static function set($key, $value, $expires = false) {
global $config;
$key = $config['cache']['prefix'] . $key;
if (!$expires)
$expires = $config['cache']['timeout'];
switch ($config['cache']['enabled']) {
case 'memcached':
if (!self::$cache)
self::init();
self::$cache->set($key, $value, $expires);
break;
case 'apc':
apc_store($key, $value, $expires);
break;
case 'xcache':
xcache_set($key, $value, $expires);
break;
case 'php':
self::$cache[$key] = $value;
break;
}
}
public static function delete($key) {
global $config;
$key = $config['cache']['prefix'] . $key;
switch ($config['cache']['enabled']) {
case 'memcached':
if (!self::$cache)
self::init();
self::$cache->delete($key);
break;
case 'apc':
apc_delete($key);
break;
case 'xcache':
xcache_unset($key);
break;
case 'php':
unset(self::$cache[$key]);
break;
}
}
public static function flush() {
global $config;
switch ($config['cache']['enabled']) {
case 'memcached':
if (!self::$cache)
self::init();
return self::$cache->flush();
case 'apc':
return apc_clear_cache('user');
case 'php':
self::$cache[$key] = Array();
break;
}
return false;
}
}
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