# Class **Phalcon\Cache\Frontend\None**[](# "永久链接至标题") *implements*[*Phalcon\Cache\FrontendInterface*](#) Discards any kind of frontend data input. This frontend does not have expiration time or any other options ~~~ <?php <?php //Create a None Cache $frontCache = new \Phalcon\Cache\Frontend\None(); // Create the component that will cache "Data" to a "Memcached" backend // Memcached connection settings $cache = new \Phalcon\Cache\Backend\Memcache($frontCache, array( "host" => "localhost", "port" => "11211" )); // This Frontend always return the data as it's returned by the backend $cacheKey = 'robots_order_id.cache'; $robots = $cache->get($cacheKey); if ($robots === null) { // This cache doesn't perform any expiration checking, so the data is always expired // Make the database call and populate the variable $robots = Robots::find(array("order" => "id")); $cache->save($cacheKey, $robots); } // Use $robots :) foreach ($robots as $robot) { echo $robot->name, "\n"; } ~~~ ### Methods[](# "永久链接至标题") public **getLifetime** () Returns cache lifetime, always one second expiring content public **isBuffering** () Check whether if frontend is buffering output, always false public **start** () Starts output frontend public *string***getContent** () Returns output cached content public **stop** () Stops output frontend public **beforeStore** (*mixed* $data) Prepare data to be stored public **afterRetrieve** (*mixed* $data) Prepares data to be retrieved to user | - [索引](# "总目录") - [下一页](# "Class Phalcon\Cache\Frontend\Output") | - [上一页](# "Class Phalcon\Cache\Frontend\Json") | - [API Indice](#) »