banker/src/Driver/AbstractDriver.php

68 lines
1.4 KiB
PHP

<?php declare(strict_types=1);
/**
* Banker
*
* A Caching library implementing psr/cache
*
* PHP version 7.2
*
* @package Banker
* @author Timothy J. Warren <tim@timshomepage.net>
* @copyright 2016 - 2019 Timothy J. Warren
* @license http://www.opensource.org/licenses/mit-license.html MIT License
* @version 3.0.0
* @link https://git.timshomepage.net/timw4mail/banker
*/
namespace Aviat\Banker\Driver;
use Aviat\Banker\LoggerTrait;
use Psr\Log\LoggerAwareInterface;
/**
* Base class for cache backends
*/
abstract class AbstractDriver implements DriverInterface, LoggerAwareInterface {
use LoggerTrait;
/**
* Data to be stored later
*
* @var array
*/
protected $deferred = [];
/**
* Common constructor interface for driver classes
*
* @param array $config - Connection parameters for the specified backend
* @param array $options - Special connection options for the specified backend
*/
abstract public function __construct(array $config = [], array $options = []);
/**
* Common destructor
*/
abstract public function __destruct();
/**
* Retrieve a set of values by their cache key
*
* @param string[] $keys
* @return array
*/
public function getMultiple(array $keys = []): array
{
$output = [];
foreach ($keys as $key)
{
if ($this->exists($key))
{
$output[$key] = $this->get($key);
}
}
return $output;
}
}