kash/kash

General caching library

Kash/Kash

, _(*1)

Kash is a general purpose caching library that is used to cache various values using a variety of different drivers to accomplish this., _(*2)

• Database results
• User sessions
• API Calls

Features

• Fast
• Supports
  • Filesystem
  • APC
  • Redis
  • Memcached
  • PDO
  • Null
• Extra drivers that are able to support multiple backends
• Uses PSR-3 standard for logging
• Heavily Tested, Commented, and Quality Controlled

Installation

Composer (Preferred)

This assumes you have composer installed. Once you do that please run, _(*3)

composer.phar require "kash/kash:*"

Usage

<?php

// Configure the pool with a driver
$driver = new \Kash\Driver\ArrayDriver();
$pool   = new \Kash\CachePool($driver);

// Use to enable logging, $logger is a PSR-3 compatible logger
//$pool->setLogger($logger);

// Get an item base on a unique key. If the item does
// not exist, it creates one for you
/** @var \Kash\CacheItemInterface */
$item = $pool->getItem('example_key');

if (!$item->isHit()) {
    // ... do stuff, put results into $value
    $item->set($value);

    // Expires in 300 seconds from now
    $item->setExpiration(300);

    // Save the item to your cache
    $pool->save($item);
}

// $result is whatever you had it set to
$result = $item->get();

// Delete the item from the cache
$pool->deleteItems(array($item));

// Clear the backend cache of all items
$pool->clear();

Configure Kash as a Service with Symfony2

Edit your services.xml file., _(*4)

<service id="cache_driver" class="Kash\Driver\ArrayDriver" />
<service id="cache_pool" class="Kash\CachePool">
    <argument type="service" id="cache_driver" />
    <call method="setLogger">
        <argument type="service" id="logger" />
    </call>
</service>

This will set up Kash and use Monolog as the logger or whatever you have setup as the logging service. You can change the driver class to whatever driver you want., _(*5)

When you need to use the caching service, simple grab it out of the container., _(*6)

// Inside your controller, inside an action
$pool = $this->get('cache_pool');

Core Concepts

Items

Items are the smallest unit that can be cached. This would include the results from an API call or possible just a simple value. Items are what you will use to cache data and check expiration times., _(*7)

Pools

Items go into and come out of a pool. The pool uses Drivers to talk with various Backends., _(*8)

Drivers

Drivers are used to communicate with cache Backends such as a filesytem, database, etc. The only know of the Backend they need to communicate with and that they are given CacheItem's to find and persist., _(*9)

Backends

Backends are anything that is used to store cached items. These include things such as a filesystem up to Redis and everything in between., _(*10)

Drivers

NullDriver

The NullDriver does not cache any data., _(*11)

ArrayDriver

This driver caches data in an array. It does not persist data, but you are able to set values and expire items., _(*12)

Usage

<?php

$driver = new \Kash\Driver\ArrayDriver();
$pool   = new \Kash\CachePool($driver);

FilesystemDriver

Caches data to a filesystem., _(*13)

Creating Your Own Driver

All drivers MUST implement the DriverInterface. The documentation for what is expected is documented in this file. Once you have your driver class created you will just inject it into the CachePool when you create it. Easy! For some examples please look at some of the included drivers code., _(*14)

API Documentation

API docs are generated using phpDocumentor. To generate documentation for this project, please run:, _(*15)

phpdoc -d src -t build/api-docs

Testing

PHPUnit is used as the testing framework. If you want to run tests, just run phpunit., _(*16)

phpunit

Change Log

See CHANGELOG.md, _(*17)

Contributing Guidelines

See CONTRIBUTING.md, _(*18)

License

Copyright (c) 2015 Joshua Estes, _(*19)

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:, _(*20)

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software., _(*21)

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE., _(*22)