<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\HttpKernel\Config;
use Symfony\Component\Config\Resource\SelfCheckingResourceInterface;
/**
* EnvParametersResource represents resources stored in prefixed environment variables.
*
* @author Chris Wilkinson <chriswilkinson84@gmail.com>
*
* @deprecated since version 3.4, to be removed in 4.0
*/
class EnvParametersResource implements SelfCheckingResourceInterface, \Serializable
{
/**
* @var string
*/
private $prefix;
/**
* @var string
*/
private $variables;
/**
* @param string $prefix
*/
public function __construct($prefix)
{
$this->prefix = $prefix;
$this->variables = $this->findVariables();
}
/**
* {@inheritdoc}
*/
public function __toString()
{
return serialize($this->getResource());
}
/**
* @return array An array with two keys: 'prefix' for the prefix used and 'variables' containing all the variables watched by this resource
*/
public function getResource()
{
return ['prefix' => $this->prefix, 'variables' => $this->variables];
}
/**
* {@inheritdoc}
*/
public function isFresh($timestamp)
{
return $this->findVariables() === $this->variables;
}
/**
* @internal
*/
public function serialize()
{
return serialize(['prefix' => $this->prefix, 'variables' => $this->variables]);
}
/**
* @internal
*/
public function unserialize($serialized)
{
if (\PHP_VERSION_ID >= 70000) {
$unserialized = unserialize($serialized, ['allowed_classes' => false]);
} else {
$unserialized = unserialize($serialized);
}
$this->prefix = $unserialized['prefix'];
$this->variables = $unserialized['variables'];
}
private function findVariables()
{
$variables = [];
foreach ($_SERVER as $key => $value) {
if (0 === strpos($key, $this->prefix)) {
$variables[$key] = $value;
}
}
ksort($variables);
return $variables;
}
}