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<?php |
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declare(strict_types=1); |
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namespace voku\cache; |
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/** |
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* AdapterApc: a APC-Cache adapter |
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* |
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* http://php.net/manual/de/book.apc.php |
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* |
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* @package voku\cache |
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*/ |
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class AdapterApc implements iAdapter |
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{ |
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/** |
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* @var bool |
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*/ |
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public $installed = false; |
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/** |
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* @var bool |
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*/ |
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public $debug = false; |
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/** |
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* __construct() |
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*/ |
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public function __construct() |
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{ |
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if ( |
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\function_exists('apc_store') === true |
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&& |
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\ini_get('apc.enabled') |
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) { |
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$this->installed = true; |
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} |
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} |
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/** |
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* Check if apc-cache exists. |
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* |
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* WARNING: use $this->exists($key) instead |
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* |
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* @param string $key |
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* |
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* @return bool |
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* |
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* @internal |
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*/ |
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public function apc_cache_exists($key): bool |
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{ |
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return (bool)\apc_fetch($key); |
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} |
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/** |
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* Clears the APC cache by type. |
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* |
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* @param string $type - If $type is "user", the user cache will be cleared; otherwise, |
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* the system cache (cached files) will be cleared. |
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* |
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* @return bool |
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* |
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* @internal |
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*/ |
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public function cacheClear(string $type): bool |
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{ |
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return \apc_clear_cache($type); |
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} |
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/** |
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* Retrieves cached information from APC's data store |
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* |
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* @param string $type - If $type is "user", information about the user cache will be returned. |
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* @param bool $limited - If $limited is TRUE, the return value will exclude the individual list of cache entries. |
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* This is useful when trying to optimize calls for statistics gathering. |
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* |
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* @return array of cached data (and meta-data) or FALSE on failure. |
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*/ |
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public function cacheInfo(string $type = '', bool $limited = false): array |
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{ |
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return \apc_cache_info($type, $limited); |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function exists(string $key): bool |
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{ |
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if (\function_exists('apc_exists')) { |
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return \apc_exists($key); |
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} |
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return $this->apc_cache_exists($key); |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function get(string $key) |
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{ |
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if ($this->exists($key)) { |
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return \apc_fetch($key); |
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} |
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return false; |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function installed(): bool |
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{ |
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return $this->installed; |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function remove(string $key): bool |
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{ |
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return \apc_delete($key); |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function removeAll(): bool |
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{ |
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return $this->cacheClear('system') && $this->cacheClear('user'); |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function set(string $key, $value): bool |
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{ |
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return \apc_store($key, $value); |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function setExpired(string $key, $data, int $ttl = 0): bool |
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{ |
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return \apc_store($key, $data, $ttl); |
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} |
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} |
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voku /
simple-cache
