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<?php |
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namespace DBAL\Caching; |
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use Exception; |
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/** |
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* @codeCoverageIgnore |
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*/ |
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class MemcachedCache implements CacheInterface |
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{ |
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protected $cache; |
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/** |
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* constructor |
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*/ |
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public function __construct() |
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{ |
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if (!extension_loaded('memcached')) { |
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throw new Exception('Memcached extension is not loaded'); |
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} |
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} |
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/** |
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* destructor closes the connection |
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*/ |
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public function __destruct() |
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{ |
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if (is_object($this->cache)) { |
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$this->cache->quit(); |
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} |
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} |
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/** |
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* Connect to a server |
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* @param string $host This should be the host name or IP address you want to connect to |
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* @param int $port The port number where Memcache can be accessed |
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* @param string|boolean This should be the id of any persistent connection or set to false if it should not be persistent |
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* @return $this |
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*/ |
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public function connect($host, $port, $persistent = false) |
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{ |
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$this->addServer($host, $port, $persistent); |
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return $this; |
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} |
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/** |
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* Add a server to connection pool |
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* @param string $host This should be the host name or IP address you want to add to the Memcache pool |
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* @param int $port The port number where Memcache can be accessed |
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* @param string|boolean This should be the id of any persistent connection or set to false if it should not be persistent |
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* @return $this |
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*/ |
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public function addServer($host, $port, $persistent = false) |
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{ |
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$this->cache = new \Memcached($persistent); |
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$this->cache->addServer($host, intval($port)); |
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return $this; |
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} |
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/** |
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* Adds a value to be stored on the server |
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* @param string $key This should be the key for the value you wish to add |
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* @param mixed $value The value you wish to be stored with the given key |
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* @param int $time How long should the value be stored for in seconds (0 = never expire) (max set value = 2592000 (30 Days)) |
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* @return boolean Returns true if successfully added or false on failure |
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*/ |
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public function save($key, $value, $time = 0) |
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{ |
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return $this->cache->set($key, $value, intval($time)); |
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} |
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/** |
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* Replaces a stored value for a given key |
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* @param string $key This should be the key for the value you wish to replace |
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* @param mixed $value The new value that you wish to give to that key |
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* @param int $time How long should the value be stored for in seconds (0 = never expire) (max set value = 2592000 (30 Days)) |
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* @return boolean Returns true if successfully replaced or false on failure |
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*/ |
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public function replace($key, $value, $time = 0) |
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{ |
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return $this->cache->replace($key, $value, intval($time)); |
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} |
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/** |
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* Returns the values store for the given key |
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* @param string $key This should be the unique query key to get the value |
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* @return mixed The store value will be returned |
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*/ |
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public function fetch($key) |
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{ |
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return $this->cache->get($key); |
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} |
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/** |
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* Deletes a single value from the server based on the given key |
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* @param string $key This should be the key that you wish to delete the value for |
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* @return boolean Returns true on success or false on failure |
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*/ |
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public function delete($key) |
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{ |
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return $this->cache->delete($key); |
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} |
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/** |
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* Deletes all values from the server |
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* @return boolean Returns true on success or false on failure |
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*/ |
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public function deleteAll() |
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{ |
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return $this->cache->flush(); |
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} |
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} |
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AdamB7586 /
pdo-dbal
