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<?php
/*
* This file is part of php-cache\cache-bundle package.
*
* (c) 2015 Aaron Scherer <[email protected]>, Tobias Nyholm <[email protected]>
* This source file is subject to the MIT license that is bundled
* with this source code in the file LICENSE.
*/
namespace Cache\CacheBundle;
/**
* A class to normalize cache keys.
* @author Tobias Nyholm <[email protected]>
class KeyNormalizer
{
* Remove all characters that is not supported by PSR6.
* @param $key
public static function onlyValid($key)
return preg_replace('|[^A-Za-z0-9_\.]|', '', $key);
}
* Remove all characters that are marked as reserved in PSR6.
* @param string $key
public static function noInvalid($key)
return preg_replace('|[\{\}\(\)/\\\@\:]|', '', $key);
php-cache /
cache-bundle
