| 1 | <?php | ||
| 13 | class CacheClient extends Client | ||
| 14 | { | ||
| 15 | /** | ||
| 16 | * @var CacheStorage | ||
| 17 | */ | ||
| 18 | private $storage; | ||
| 19 | |||
| 20 | /** | ||
| 21 | * CacheClient constructor. | ||
| 22 | * @param array $config | ||
| 23 | */ | ||
| 24 | public function __construct($config = []) | ||
| 33 | |||
| 34 | /** | ||
| 35 | * @param string $dir | ||
| 36 | * @param int $ttl | ||
| 37 | */ | ||
| 38 | private function attachCacheSubscriber($dir, $ttl = 0) | ||
| 44 | |||
| 45 | /** | ||
| 46 | * Clear all cache | ||
| 47 | */ | ||
| 48 | public function cacheClear() | ||
| 56 | |||
| 57 | /** | ||
| 58 | * Delete cache by request | ||
| 59 | * @param RequestInterface $request | ||
| 60 | */ | ||
| 61 | public function deleteCache(RequestInterface $request) | ||
| 65 | } | 
If a method or function can return multiple different values and unless you are sure that you only can receive a single value in this context, we recommend to add an additional type check:
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