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<?php |
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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 $debug = false; |
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/** |
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* __construct() |
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*/ |
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public function __construct() |
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{ |
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if (function_exists('apc_store') === true) { |
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$this->installed = true; |
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} |
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} |
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/** |
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* cacheInfo |
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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 boolean $limited - If $limited is TRUE, the return value will exclude the individual list of cache entries. |
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* This is useful when trying to optimize calls for statistics gathering. |
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* |
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* @return array of cached data (and meta-data) or FALSE on failure. |
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*/ |
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public function cacheInfo($type = '', $limited = false) |
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{ |
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return apc_cache_info($type, $limited); |
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} |
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/* |
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* apc_cache_exists (fallback function for old apc) |
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* |
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* * @return boolean |
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*/ |
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/** |
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* Cache a variable in the data-store |
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* |
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* @param string $key |
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* @param mixed $value |
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* |
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* @return Boolean - Returns TRUE on success or FALSE on failure. |
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*/ |
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public function set($key, $value) |
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{ |
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return apc_store($key, $value); |
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} |
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/** |
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* Cache a variable in the data-store with ttl |
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* |
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* @param string $key - Store the variable using this name. |
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* @param string $data - The variable to store. |
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* @param string $ttl - Time To Live; store var in the cache for ttl seconds. "0" for no ttl |
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* |
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* @return boolean - Returns TRUE on success or FALSE on failure. |
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*/ |
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public function setExpired($key, $data, $ttl) |
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{ |
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return apc_store($key, $data, $ttl); |
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} |
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/** |
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* |
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* get stored value in APC from key |
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* |
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* @param string $key - The key used to store the value. |
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* |
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* @return boolean - The stored variable or array of variables on success; FALSE on failure. |
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*/ |
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public function get($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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} else { |
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return false; |
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} |
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} |
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/** |
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* Checks if APC key exists |
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* |
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* @param mixed $key - A string, or an array of strings, that contain keys. |
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* |
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* @return mixed - Returns TRUE if the key exists, otherwise FALSE Or if an array was passed to keys, then an array |
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* is returned that contains all existing keys, or an empty array if none exist. |
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*/ |
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public function exists($key) |
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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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} else { |
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return $this->apc_cache_exists($key); |
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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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* @param string $key |
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* |
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* @return bool |
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*/ |
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public function apc_cache_exists($key) |
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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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* Removes a stored variable from the cache |
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* |
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* @param string $key - The key used to store the value (with apc_store()). |
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* |
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* @return boolean - Returns TRUE on success or FALSE on failure. |
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*/ |
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public function remove($key) |
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{ |
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return apc_delete($key); |
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} |
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/** |
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* Removes the cache |
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* |
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* @return boolean - Returns TRUE on success or FALSE on failure. |
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*/ |
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public function removeAll() |
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{ |
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return apc_clear_cache('system') && apc_clear_cache('user'); |
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} |
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/** |
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* Clears the APC cache |
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* |
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* @param string $type - If $type is "user", the user cache will be cleared; otherwise, the system cache (cached |
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* files) will be cleared. |
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* |
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* @return boolean - Returns TRUE on success or FALSE on failure. |
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*/ |
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public function cacheClear($type) |
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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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* check if cache is installed |
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* |
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* @return boolean |
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*/ |
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public function installed() |
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{ |
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return $this->installed; |
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} |
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} |
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voku /
simple-cache
