Class **Phalcon\\Cache\\Backend\\Redis** ======================================== *extends* abstract class :doc:`Phalcon\\Cache\\Backend ` *implements* :doc:`Phalcon\\Cache\\BackendInterface ` .. role:: raw-html(raw) :format: html :raw-html:`Source on GitHub` Allows to cache output fragments, PHP data or raw data to a redis backend This adapter uses the special redis key "_PHCR" to store all the keys internally used by the adapter .. code-block:: php 172800 ]); // Create the Cache setting redis connection options $cache = new Redis($frontCache, [ 'host' => 'localhost', 'port' => 6379, 'auth' => 'foobared', 'persistent' => false 'index' => 0, ]); // Cache arbitrary data $cache->save('my-data', [1, 2, 3, 4, 5]); // Get data $data = $cache->get('my-data'); Methods ------- public **__construct** (:doc:`Phalcon\\Cache\\FrontendInterface ` $frontend, [*array* $options]) Phalcon\\Cache\\Backend\\Redis constructor public **_connect** () Create internal connection to redis public **get** (*mixed* $keyName, [*mixed* $lifetime]) Returns a cached content public **save** ([*int* | *string* $keyName], [*string* $content], [*long* $lifetime], [*boolean* $stopBuffer]) Stores cached content into the file backend and stops the frontend public **delete** (*int* | *string* $keyName) Deletes a value from the cache by its key public **queryKeys** ([*string* $prefix]) Query the existing cached keys public *boolean* **exists** ([*string* $keyName], [*long* $lifetime]) Checks if cache exists and it isn't expired public **increment** ([*string* $keyName], [*long* $value]) Increment of given $keyName by $value public **decrement** ([*string* $keyName], [*long* $value]) Decrement of $keyName by given $value public **flush** () Immediately invalidates all existing items. public **getFrontend** () inherited from :doc:`Phalcon\\Cache\\Backend ` ... public **setFrontend** (*mixed* $frontend) inherited from :doc:`Phalcon\\Cache\\Backend ` ... public **getOptions** () inherited from :doc:`Phalcon\\Cache\\Backend ` ... public **setOptions** (*mixed* $options) inherited from :doc:`Phalcon\\Cache\\Backend ` ... public **getLastKey** () inherited from :doc:`Phalcon\\Cache\\Backend ` ... public **setLastKey** (*mixed* $lastKey) inherited from :doc:`Phalcon\\Cache\\Backend ` ... public *mixed* **start** (*int* | *string* $keyName, [*int* $lifetime]) inherited from :doc:`Phalcon\\Cache\\Backend ` Starts a cache. The keyname allows to identify the created fragment public **stop** ([*mixed* $stopBuffer]) inherited from :doc:`Phalcon\\Cache\\Backend ` Stops the frontend without store any cached content public **isFresh** () inherited from :doc:`Phalcon\\Cache\\Backend ` Checks whether the last cache is fresh or cached public **isStarted** () inherited from :doc:`Phalcon\\Cache\\Backend ` Checks whether the cache has starting buffering or not public *int* **getLifetime** () inherited from :doc:`Phalcon\\Cache\\Backend ` Gets the last lifetime set