c58f935fdc
The example (and related documentation at redis.io) was not updated for 5 years. Redis had no sorted sets and hashes when the original code was written (!). An update was really needed. We also use a modern PHP client now: Predis. A copy is shipped within this repository to make life easier to newcomers trying Redis for the first time via this example.
89 lines
2 KiB
PHP
89 lines
2 KiB
PHP
<?php
|
|
|
|
/*
|
|
* This file is part of the Predis package.
|
|
*
|
|
* (c) Daniele Alessandri <suppakilla@gmail.com>
|
|
*
|
|
* For the full copyright and license information, please view the LICENSE
|
|
* file that was distributed with this source code.
|
|
*/
|
|
|
|
namespace Predis\Option;
|
|
|
|
/**
|
|
* Implements a generic class used to dynamically define a client option.
|
|
*
|
|
* @author Daniele Alessandri <suppakilla@gmail.com>
|
|
*/
|
|
class CustomOption implements OptionInterface
|
|
{
|
|
private $filter;
|
|
private $default;
|
|
|
|
/**
|
|
* @param array $options List of options
|
|
*/
|
|
public function __construct(Array $options = array())
|
|
{
|
|
$this->filter = $this->ensureCallable($options, 'filter');
|
|
$this->default = $this->ensureCallable($options, 'default');
|
|
}
|
|
|
|
/**
|
|
* Checks if the specified value in the options array is a callable object.
|
|
*
|
|
* @param array $options Array of options
|
|
* @param string $key Target option.
|
|
*/
|
|
private function ensureCallable($options, $key)
|
|
{
|
|
if (!isset($options[$key])) {
|
|
return;
|
|
}
|
|
|
|
if (is_callable($callable = $options[$key])) {
|
|
return $callable;
|
|
}
|
|
|
|
throw new \InvalidArgumentException("The parameter $key must be callable");
|
|
}
|
|
|
|
/**
|
|
* {@inheritdoc}
|
|
*/
|
|
public function filter(ClientOptionsInterface $options, $value)
|
|
{
|
|
if (isset($value)) {
|
|
if ($this->filter === null) {
|
|
return $value;
|
|
}
|
|
|
|
return call_user_func($this->filter, $options, $value);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* {@inheritdoc}
|
|
*/
|
|
public function getDefault(ClientOptionsInterface $options)
|
|
{
|
|
if (!isset($this->default)) {
|
|
return;
|
|
}
|
|
|
|
return call_user_func($this->default, $options);
|
|
}
|
|
|
|
/**
|
|
* {@inheritdoc}
|
|
*/
|
|
public function __invoke(ClientOptionsInterface $options, $value)
|
|
{
|
|
if (isset($value)) {
|
|
return $this->filter($options, $value);
|
|
}
|
|
|
|
return $this->getDefault($options);
|
|
}
|
|
}
|