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- <?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>
- */
- class EnvParametersResource implements SelfCheckingResourceInterface, \Serializable
- {
- /**
- * @var string
- */
- private $prefix;
- /**
- * @var string
- */
- private $variables;
- /**
- * Constructor.
- *
- * @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 array('prefix' => $this->prefix, 'variables' => $this->variables);
- }
- /**
- * {@inheritdoc}
- */
- public function isFresh($timestamp)
- {
- return $this->findVariables() === $this->variables;
- }
- public function serialize()
- {
- return serialize(array('prefix' => $this->prefix, 'variables' => $this->variables));
- }
- public function unserialize($serialized)
- {
- if (\PHP_VERSION_ID >= 70000) {
- $unserialized = unserialize($serialized, array('allowed_classes' => false));
- } else {
- $unserialized = unserialize($serialized);
- }
- $this->prefix = $unserialized['prefix'];
- $this->variables = $unserialized['variables'];
- }
- private function findVariables()
- {
- $variables = array();
- foreach ($_SERVER as $key => $value) {
- if (0 === strpos($key, $this->prefix)) {
- $variables[$key] = $value;
- }
- }
- ksort($variables);
- return $variables;
- }
- }
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