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<?php |
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|
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/* |
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* This file is part of the Assetic package, an OpenSky project. |
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* |
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* (c) 2010-2014 OpenSky Project Inc |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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|
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namespace Assetic\Cache; |
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|
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/** |
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* Adds expiration to a cache backend. |
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* |
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* @author Kris Wallsmith <[email protected]> |
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*/ |
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class ExpiringCache implements CacheInterface |
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{ |
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private $cache; |
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private $lifetime; |
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|
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public function __construct(CacheInterface $cache, $lifetime) |
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{ |
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$this->cache = $cache; |
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$this->lifetime = $lifetime; |
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} |
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|
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public function has($key) |
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{ |
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if ($this->cache->has($key)) { |
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if (time() < $this->cache->get($key.'.expires')) { |
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return true; |
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} |
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|
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$this->cache->remove($key.'.expires'); |
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$this->cache->remove($key); |
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} |
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|
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return false; |
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} |
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|
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public function get($key) |
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{ |
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return $this->cache->get($key); |
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} |
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|
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public function set($key, $value) |
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{ |
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$this->cache->set($key.'.expires', time() + $this->lifetime); |
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$this->cache->set($key, $value); |
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} |
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|
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public function remove($key) |
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{ |
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$this->cache->remove($key.'.expires'); |
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$this->cache->remove($key); |
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} |
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} |
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|
