Sections

Class Phalcon\Cache\Backend\Redis

extends abstract class Phalcon\Cache\Backend

implements Phalcon\Cache\BackendInterface

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

<?php

use Phalcon\Cache\Backend\Redis;
use Phalcon\Cache\Frontend\Data as FrontData;

// Cache data for 2 days
$frontCache = new FrontData(
    [
        "lifetime" => 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 (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], [int $lifetime], [boolean $stopBuffer])

Stores cached content into the file backend and stops the frontend

<?php

$cache->save("my-key", $data);

// Save data termlessly
$cache->save("my-key", $data, -1);

public delete (int string $keyName)

Deletes a value from the cache by its key

public queryKeys ([mixed $prefix])

Query the existing cached keys.

<?php

$cache->save("users-ids", [1, 2, 3]);
$cache->save("projects-ids", [4, 5, 6]);

var_dump($cache->queryKeys("users")); // ["users-ids"]

public exists ([string $keyName], [int $lifetime])

Checks if cache exists and it isn’t expired

public increment ([string $keyName], [mixed $value])

Increment of given $keyName by $value

public decrement ([string $keyName], [mixed $value])

Decrement of $keyName by given $value

public flush ()

Immediately invalidates all existing items.

public getFrontend () inherited from Phalcon\Cache\Backend

public setFrontend (mixed $frontend) inherited from Phalcon\Cache\Backend

public getOptions () inherited from Phalcon\Cache\Backend

public setOptions (mixed $options) inherited from Phalcon\Cache\Backend

public getLastKey () inherited from Phalcon\Cache\Backend

public setLastKey (mixed $lastKey) inherited from Phalcon\Cache\Backend

public mixed start (int string $keyName, [int $lifetime]) inherited from Phalcon\Cache\Backend

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

public stop ([mixed $stopBuffer]) inherited from Phalcon\Cache\Backend

Stops the frontend without store any cached content

public isFresh () inherited from Phalcon\Cache\Backend

Checks whether the last cache is fresh or cached

public isStarted () inherited from Phalcon\Cache\Backend

Checks whether the cache has starting buffering or not

public int getLifetime () inherited from Phalcon\Cache\Backend

Gets the last lifetime set