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<?php |
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/** |
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* Pimf |
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* |
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* @copyright Copyright (c) Gjero Krsteski (http://krsteski.de) |
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* @license http://opensource.org/licenses/MIT MIT License |
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*/ |
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namespace Pimf\Cache\Storages; |
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/** |
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* Redis usage |
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* |
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* <code> |
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* // Put an item in the cache for 15 minutes |
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* Cache::put('name', 'Robin', 15); |
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* </code> |
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* |
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* @package Cache_Storages |
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* @author Gjero Krsteski <[email protected]> |
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*/ |
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class Redis extends Storage |
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{ |
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/** |
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* The Redis database instance. |
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* |
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* @var \Pimf\Redis |
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*/ |
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protected $redis; |
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/** |
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* @param \Pimf\Redis $redis |
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*/ |
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public function __construct(\Pimf\Redis $redis) |
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{ |
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$this->redis = $redis; |
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} |
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/** |
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* Determine if an item exists in the cache. |
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* |
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* @param string $key |
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* |
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* @return bool |
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*/ |
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public function has($key) |
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{ |
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return ($this->redis->get($key) !== null); |
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} |
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/** |
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* Retrieve an item from the cache storage. |
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* |
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* @param string $key |
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* |
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* @return mixed |
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*/ |
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protected function retrieve($key) |
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{ |
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if (!is_null($cache = $this->redis->get($key))) { |
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return unserialize($cache); |
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} |
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return null; |
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} |
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/** |
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* Write an item to the cache for a given number of minutes. |
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* |
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* @param string $key |
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* @param mixed $value |
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* @param int $minutes |
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*/ |
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public function put($key, $value, $minutes) |
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{ |
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$this->forever($key, $value); |
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$this->redis->expire($key, $minutes * 60); |
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} |
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/** |
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* Write an item to the cache that lasts forever. |
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* |
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* @param string $key |
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* @param $value |
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*/ |
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public function forever($key, $value) |
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{ |
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$this->redis->set($key, serialize($value)); |
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} |
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/** |
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* Delete an item from the cache. |
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* |
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* @param string $key |
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*/ |
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public function forget($key) |
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{ |
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$this->redis->del($key); |
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} |
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} |
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gjerokrsteski /
pimf-framework
