README

Yii Caching Library - Redis Handler

This package provides the Redis handler and implements PSR-16 cache.

Requirements

PHP 8.0 or higher.

Installation

The package could be installed with composer:

composer require yiisoft/cache-redis --prefer-dist

General usage

For more information about the client instance and connection configuration, see the documentation of the predis/predis package.

/**
 * @var \Predis\ClientInterface $client Predis client instance to use.
 */
$cache = new \Yiisoft\Cache\Redis\RedisCache($client);

The package does not contain any additional functionality for interacting with the cache, except those defined in the PSR-16 interface.

$parameters = ['user_id' => 42];
$key = 'demo';

// try retrieving $data from cache
$data = $cache->get($key);

if ($data === null) {
    // $data is not found in cache, calculate it from scratch
    $data = calculateData($parameters);
    
    // store $data in cache for an hour so that it can be retrieved next time
    $cache->set($key, $data, 3600);
}

// $data is available here

In order to delete value you can use:

$cache->delete($key);
// Or all cache
$cache->clear();

To work with values in a more efficient manner, batch operations should be used:

getMultiple()
setMultiple()
deleteMultiple()

This package can be used as a cache handler for the Yii Caching Library.

Testing

Unit testing

The package is tested with PHPUnit. To run tests:

./vendor/bin/phpunit

Mutation testing

The package tests are checked with Infection mutation framework with Infection Static Analysis Plugin. To run it:

./vendor/bin/roave-infection-static-analysis-plugin

Static analysis

The code is statically analyzed with Psalm. To run static analysis:

./vendor/bin/psalm

License

The Yii Caching Library - Redis Handler is free software. It is released under the terms of the BSD License. Please see LICENSE for more information.

Maintained by Yii Software.

yiisoft / cache-redis

Maintainers

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