Abstract class Phalcon\Cache\Backend

implements Phalcon\Cache\BackendInterface

This class implements common functionality for backend adapters. A backend cache adapter may extend this class

Methods

public __construct (Phalcon\Cache\FrontendInterface $frontend, [array $options])

Phalcon\Cache\Backend constructor

public mixed start (int|string $keyName, [long $lifetime])

Starts a cache. The $keyname allows to identify the created fragment

public stop ([boolean $stopBuffer])

Stops the frontend without store any cached content

public mixed getFrontend ()

Returns front-end instance adapter related to the back-end

public array getOptions ()

Returns the backend options

public boolean isFresh ()

Checks whether the last cache is fresh or cached

public boolean isStarted ()

Checks whether the cache has starting buffering or not

public setLastKey (string $lastKey)

Sets the last key used in the cache

public string getLastKey ()

Gets the last key stored by the cache

public int getLifetime ()

Gets the last lifetime set

abstract public mixed get (int|string $keyName, [long $lifetime]) inherited from Phalcon\Cache\BackendInterface

Returns a cached content

abstract public save ([int|string $keyName], [string $content], [long $lifetime], [boolean $stopBuffer]) inherited from Phalcon\Cache\BackendInterface

Stores cached content into the file backend and stops the frontend

abstract public boolean delete (int|string $keyName) inherited from Phalcon\Cache\BackendInterface

Deletes a value from the cache by its key

abstract public array queryKeys ([string $prefix]) inherited from Phalcon\Cache\BackendInterface

Query the existing cached keys

abstract public boolean exists ([string $keyName], [long $lifetime]) inherited from Phalcon\Cache\BackendInterface

Checks if cache exists and it hasn’t expired

abstract public boolean flush () inherited from Phalcon\Cache\BackendInterface

Immediately invalidates all existing items.