linio/cache

Provides a multi-layered caching abstraction

3.0.1 2020-06-04 20:38 UTC

README

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Linio Cache is yet another component of the Linio Framework. It aims to abstract caching by supporting multiple adapters.

Install

The recommended way to install Linio Cache is through composer.

{
    "require": {
        "linio/cache": "dev-master"
    }
}

Tests

To run the test suite, you need install the dependencies via composer, then run PHPUnit.

$ composer install
$ phpunit

Cache Not Found Keys

It is now possible (v.1.0.9) to cache not found keys in upper level adapters of the adapter stack. The configuration option cache_not_found_keys can be set at the adapter level.

Note that this option, obviously, does not apply to the last level of the cache hierarchy.

Usage

<?php

use \Linio\Component\Cache\CacheService;

$container['cache'] = new CacheService([
    'namespace' => 'mx',
    'layers' => [
        0 => [
            'adapter_name' => 'array',
            'adapter_options' => [
                'cache_not_found_keys' => true,
                'encoder' => 'json',
            ],
        ],
        1 => [
            'adapter_name' => 'apc',
            'adapter_options' => [
                'ttl' => 3600,
            ],
        ],
        2 => [
            'adapter_name' => 'redis',
            'adapter_options' => [
                'host' => 'localhost',
                'port' => 6379,
                'ttl' => 0,
                'encoder' => 'serial',
            ],
        ],
    ],
]);

$container->setLogger($container['logger']);

Note that must provide an adapter name and an array of options. Each adapter has different configuration options.

To start setting data:

<?php

$app['cache.service']->set('foo', 'bar');

Methods

get

<?php

    /**
     * @param string $key
     * @return string value
     */
    public function get($key);

    $adapter->get('foo');

getMulti

<?php

     /**
     * @param array $keys
     * @return string[]
     */
    public function getMulti(array $keys);

    $adapter->getMulti(['foo', 'nop']);

set

<?php

     /**
     * @param string $key
     * @param string $value
     * @return bool
     */
    public function set($key, $value);

    $adapter->set('foo', 'bar');

setMulti

<?php

     /**
     * @param array $keys
     * @return bool
     */
    public function setMulti(array $data);

    $adapter->setMulti(['foo' => 'bar', 'fooz' => 'baz']);

delete

<?php

     /**
     * @param string $key
     * @return bool
     */
    public function delete($key);

    $adapter->delete('foo');

deleteMulti

<?php

     /**
     * @param array $keys
     * @return bool
     */
    public function deleteMulti(array $keys);

    $adapter->deleteMulti(['foo', 'fooz']);

contains

<?php

     /**
     * @param string $key
     * @return bool
     */
    public function contains($key);

    $adapter->contains('foo');

flush

<?php

     /**
     * @return bool
     */
    public function flush();

    $adapter->flush();

Providers

array

This cache does not have any persistence between requests.

Not recommended to be used in production environments.

apc

Adapter options:

  • ttl optional default: 0 (unlimited)
  • cache_not_found_keys optional default: false

Requires APC extension or APCu extension.

wincache

Adapter options:

  • ttl optional default: 0 (unlimited)
  • cache_not_found_keys optional default: false

Requires WinCache extension.

memcached

Adapter options:

  • servers array of memcache servers. format: [[, , ], [, , ], ...]
  • options array of memcache options. format: [<option_name1> => , <option_name2> => , ...]
  • connection_persistent optional default: false
  • pool_size optional default: 1 (only for persistent connections)
  • ttl optional default: 0 (unlimited)
  • cache_not_found_keys optional default: false

Requires Memcached extension.

redis

Adapter options:

  • host optional default: 127.0.0.1
  • port optional default: 6379
  • database optional default: 0 (int)
  • password optional default: null (no password)
  • connection_persistent optional default: false
  • ttl optional default: 0 (unlimited)
  • cache_not_found_keys optional default: false

More information on the available parameters at the Predis documentation.

phpredis

Adapter options:

  • host optional default: 127.0.0.1
  • port optional default: 6379
  • database optional default: 0 (int)
  • password optional default: null (no password)
  • connection_persistent optional default: false
  • pool_size optional default: 1 (only for persistent connections)
  • timeout optional default: 0 (unlimited)
  • read_timeout optional default: 0 (unlimited)
  • retry_interval optional default: 0 (value in milliseconds)
  • ttl optional default: 0 (unlimited)
  • cache_not_found_keys optional default: false
  • serializer optional default: none
    • none don't serialize data
    • php use built-in serialize/unserialize
    • igbinary use igBinary serialize/unserialize (requires igbinary extension)

More information on the available parameters at the phpredis documentation.

Requires redis extension.

mysql

Using PDO.

Adapter options:

  • host
  • port
  • dbname
  • username
  • password
  • table_name
  • ensure_table_created optional default: false
  • cache_not_found_keys optional default: false

The ensure_table_created is used to ensure the cache table exists in the database. This option has a significant performance impact.

Not recommended to be used in production environments.

aerospike

Adapter options:

  • hosts
  • aerospike_namespace optional default: test
  • persistent optional default: true
  • options optional default: []
  • ttl optional default: 0 (unlimited)
  • cache_not_found_keys optional default: false

For the Aerospike adapter, the aerospike_namespace property will be used as the namespace in Aerospike, and the namespace configuration in the CacheService will be used as the set in Aerospike.

Requires Aerospike Extension.