* //Cache the file for 2 days * $frontendOptions = array( * 'lifetime' => 172800 * ); * * //Create a output cache * $frontCache = \Phalcon\Cache\Frontend\Output($frontOptions); * * //Set the cache directory * $backendOptions = array( * 'cacheDir' => '../app/cache/' * ); * * //Create the File backend * $cache = new \Phalcon\Cache\Backend\File($frontCache, $backendOptions); * * $content = $cache->start('my-cache'); * if ($content === null) { * echo '

', time(), '

'; * $cache->save(); * } else { * echo $content; * } * */ class File extends \Phalcon\Cache\Backend implements \Phalcon\Cache\BackendInterface { /** * \Phalcon\Cache\Backend\File constructor * * @param \Phalcon\Cache\FrontendInterface $frontend * @param array $options */ public function __construct($frontend, $options=null){ } /** * Returns a cached content * * @param int|string $keyName * @param long $lifetime * @return mixed */ public function get($keyName, $lifetime=null){ } /** * Stores cached content into the file backend and stops the frontend * * @param int|string $keyName * @param string $content * @param long $lifetime * @param boolean $stopBuffer */ public function save($keyName=null, $content=null, $lifetime=null, $stopBuffer=null){ } /** * Deletes a value from the cache by its key * * @param int|string $keyName * @return boolean */ public function delete($keyName){ } /** * Query the existing cached keys * * @param string $prefix * @return array */ public function queryKeys($prefix=null){ } /** * Checks if cache exists and it isn't expired * * @param string $keyName * @param long $lifetime * @return boolean */ public function exists($keyName=null, $lifetime=null){ } } }