* @link https://getkirby.com * @copyright Bastian Allgeier GmbH * @license https://opensource.org/licenses/MIT */ class MemoryCache extends Cache { /** * Cache data * @var array */ protected $store = []; /** * Writes an item to the cache for a given number of minutes and * returns whether the operation was successful * * * // put an item in the cache for 15 minutes * $cache->set('value', 'my value', 15); * * * @param string $key * @param mixed $value * @param int $minutes * @return bool */ public function set(string $key, $value, int $minutes = 0): bool { $this->store[$key] = new Value($value, $minutes); return true; } /** * Internal method to retrieve the raw cache value; * needs to return a Value object or null if not found * * @param string $key * @return \Kirby\Cache\Value|null */ public function retrieve(string $key) { return $this->store[$key] ?? null; } /** * Removes an item from the cache and returns * whether the operation was successful * * @param string $key * @return bool */ public function remove(string $key): bool { if (isset($this->store[$key])) { unset($this->store[$key]); return true; } else { return false; } } /** * Flushes the entire cache and returns * whether the operation was successful * * @return bool */ public function flush(): bool { $this->store = []; return true; } }