从 https://github.com/shaman/opencart-memcached 下载cache.php
使用这个 cache.php替换系统中的 ./system/library/cache.php
在配置文件中./config.php 和./admin/config.php加入以下代码
- //?CACHE
- define(‘CACHE_DRIVER’,?’memcached’);
- define(‘MEMCACHE_HOSTNAME’,?’localhost’);
- define(‘MEMCACHE_PORT’,?’11211′);
- define(‘MEMCACHE_NAMESPACE’,?’opencart_test’);
下面是cache.php代码：
<?php
/**
* OpenCart Ukrainian Community
*
* LICENSE
*
* This source file is subject to the GNU General Public License, Version 3
* It is also available through the world-wide-web at this URL:
* http://www.gnu.org/copyleft/gpl.html
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to [email protected] so we can send you a copy immediately.
*
* @category OpenCart
* @package OCU Memcached
* @copyright Copyright (c) 2011 created by UncleAndy, maintained by Eugene Kuligin for OpenCart Ukrainian Community (http://www.opencart.ua)
* @license http://www.gnu.org/copyleft/gpl.html GNU General Public License, Version 3
*/
final class Cache {
????private $expire;
????private $memcache;
????private $ismemcache = false;
????public function __construct($exp = 3600) {
????????$this->expire = $exp;
????????if (CACHE_DRIVER == ‘memcached’)
????????{
????????????$mc = new Memcache;
????????if ($mc->pconnect(MEMCACHE_HOSTNAME, MEMCACHE_PORT))
????????{
????????????$this->memcache = $mc;
????????????$this->ismemcache = true;
????????};
????????};
????????$files = glob(DIR_CACHE . ‘cache.*’);
????????if ($files) {
????????????foreach ($files as $file) {
????????????????$time = substr(strrchr($file, ‘.’), 1);
??????????????????if ($time < time()) {
????????????????????if (file_exists($file)) {
????????????????????????@unlink($file);
????????????????????}
??????????????????}
????????????}
????????}
??????}
????public function get($key) {
????????if ((CACHE_DRIVER == ‘memcached’) && $this->ismemcache)
????????{
????????return($this->memcache->get(MEMCACHE_NAMESPACE . $key, 0));
????????}
????????else
????????{
????????$files = glob(DIR_CACHE . ‘cache.’ . $key . ‘.*’);
????????if ($files) {
????????????foreach ($files as $file) {
??????????????????$cache = ”;
????????????????$handle = fopen($file, ‘r’);
????????????????if ($handle) {
????????????????????$cache = fread($handle, filesize($file));
????????????????????fclose($handle);
????????????????}
??????????????????return unserialize($cache);
????????????????}
????????}
????????}
??????}
??????public function set($key, $value) {
????????if ((CACHE_DRIVER == ‘memcached’) && $this->ismemcache)
????????{
????????$this->memcache->set(MEMCACHE_NAMESPACE . $key, $value, MEMCACHE_COMPRESSED, $this->expire);
????????}
????????else
????????{
????????????????$this->delete($key);
????????????$file = DIR_CACHE . ‘cache.’ . $key . ‘.’ . (time() + $this->expire);
????????????$handle = fopen($file, ‘w’);
????????????????fwrite($handle, serialize($value));
????????????????fclose($handle);
????????????};
??????}
??????public function delete($key) {
????????if ((CACHE_DRIVER == ‘memcached’) && $this->ismemcache)
????????{
????????$this->memcache->delete(MEMCACHE_NAMESPACE . $key, 0);
????????}
????????else
????????{
????????$files = glob(DIR_CACHE . ‘cache.’ . $key . ‘.*’);
????????if ($files) {
????????????foreach ($files as $file) {
??????????????????if (file_exists($file)) {
????????????????????@unlink($file);
????????????????????clearstatcache();
????????????????}
????????????}
????????}
????????}
??????}
}