80 lines
1.7 KiB
PHP
80 lines
1.7 KiB
PHP
<?php namespace System\Cache\Driver;
|
|
|
|
class Memcached implements \System\Cache\Driver {
|
|
|
|
/**
|
|
* All of the loaded cache items.
|
|
*
|
|
* @var array
|
|
*/
|
|
private $items = array();
|
|
|
|
/**
|
|
* Determine if an item exists in the cache.
|
|
*
|
|
* @param string $key
|
|
* @return bool
|
|
*/
|
|
public function has($key)
|
|
{
|
|
return ( ! is_null($this->get($key)));
|
|
}
|
|
|
|
/**
|
|
* Get an item from the cache.
|
|
*
|
|
* @param string $key
|
|
* @param mixed $default
|
|
* @return mixed
|
|
*/
|
|
public function get($key, $default = null)
|
|
{
|
|
// --------------------------------------------------
|
|
// If the item has already been loaded, return it.
|
|
// --------------------------------------------------
|
|
if (array_key_exists($key, $this->items))
|
|
{
|
|
return $this->items[$key];
|
|
}
|
|
|
|
// --------------------------------------------------
|
|
// Attempt to the get the item from cache.
|
|
// --------------------------------------------------
|
|
$cache = \System\Memcached::instance()->get(\System\Config::get('cache.key').$key);
|
|
|
|
// --------------------------------------------------
|
|
// Verify that the item was retrieved.
|
|
// --------------------------------------------------
|
|
if ($cache === false)
|
|
{
|
|
return $default;
|
|
}
|
|
|
|
return $this->items[$key] = $cache;
|
|
}
|
|
|
|
/**
|
|
* Write an item to the cache.
|
|
*
|
|
* @param string $key
|
|
* @param mixed $value
|
|
* @param int $minutes
|
|
* @return void
|
|
*/
|
|
public function put($key, $value, $minutes)
|
|
{
|
|
\System\Memcached::instance()->set(\System\Config::get('cache.key').$key, $value, 0, $minutes * 60);
|
|
}
|
|
|
|
/**
|
|
* Delete an item from the cache.
|
|
*
|
|
* @param string $key
|
|
* @return void
|
|
*/
|
|
public function forget($key)
|
|
{
|
|
\System\Memcached::instance()->delete(\System\Config::get('cache.key').$key);
|
|
}
|
|
|
|
} |