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- <?php
- /*
- * This file is part of the Symfony package.
- *
- * (c) Fabien Potencier <fabien@symfony.com>
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
- namespace Symfony\Component\Cache\Simple;
- use Psr\SimpleCache\CacheInterface;
- /**
- * @author Nicolas Grekas <p@tchwork.com>
- */
- class NullCache implements CacheInterface
- {
- /**
- * {@inheritdoc}
- */
- public function get($key, $default = null)
- {
- return $default;
- }
- /**
- * {@inheritdoc}
- */
- public function getMultiple($keys, $default = null)
- {
- foreach ($keys as $key) {
- yield $key => $default;
- }
- }
- /**
- * {@inheritdoc}
- */
- public function has($key)
- {
- return false;
- }
- /**
- * {@inheritdoc}
- */
- public function clear()
- {
- return true;
- }
- /**
- * {@inheritdoc}
- */
- public function delete($key)
- {
- return true;
- }
- /**
- * {@inheritdoc}
- */
- public function deleteMultiple($keys)
- {
- return true;
- }
- /**
- * {@inheritdoc}
- */
- public function set($key, $value, $ttl = null)
- {
- return false;
- }
- /**
- * {@inheritdoc}
- */
- public function setMultiple($values, $ttl = null)
- {
- return false;
- }
- }
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