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| 1 | <?php |
| 2 | declare(strict_types=1); |
| 3 | /** |
| 4 | * Pop PHP Framework (https://www.popphp.org/) |
| 5 | * |
| 6 | * @link https://github.com/popphp/popphp-framework |
| 7 | * @author Nick Sagona, III <nick@popphp.org> |
| 8 | * @copyright Copyright (c) 2009-2026 Nick Sagona, III |
| 9 | * @license https://www.popphp.org/license New BSD License |
| 10 | */ |
| 11 | |
| 12 | /** |
| 13 | * @namespace |
| 14 | */ |
| 15 | namespace Pop\Cache; |
| 16 | |
| 17 | /** |
| 18 | * Shared cache key validation, used by both the PSR-16 (Cache) and PSR-6 (Psr6\CacheItemPool) surfaces |
| 19 | * |
| 20 | * @category Pop |
| 21 | * @package Pop\Cache |
| 22 | * @author Nick Sagona, III <nick@popphp.org> |
| 23 | * @copyright Copyright (c) 2009-2026 Nick Sagona, III |
| 24 | * @license https://www.popphp.org/license New BSD License |
| 25 | * @version 5.0.0 |
| 26 | */ |
| 27 | trait ValidatesKey |
| 28 | { |
| 29 | |
| 30 | /** |
| 31 | * Validate a cache key (throws on reserved characters or an empty string) |
| 32 | * |
| 33 | * @param string $key |
| 34 | * @throws InvalidArgumentException |
| 35 | * @return void |
| 36 | */ |
| 37 | protected function validateKey(string $key): void |
| 38 | { |
| 39 | if (($key === '') || (preg_match('#[{}()/\\\\@:]#', $key) === 1)) { |
| 40 | throw new InvalidArgumentException( |
| 41 | 'Error: The cache key contains one or more reserved characters, or is empty.' |
| 42 | ); |
| 43 | } |
| 44 | } |
| 45 | |
| 46 | } |