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- 28.08.2024
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EnvParametersResource.php
001 <?php
002
003 /*
004 * This file is part of the Symfony package.
005 *
006 * (c) Fabien Potencier <fabien@symfony.com>
007 *
008 * For the full copyright and license information, please view the LICENSE
009 * file that was distributed with this source code.
010 */
011
012 namespace Symfony\Component\HttpKernel\Config;
013
014 use Symfony\Component\Config\Resource\SelfCheckingResourceInterface;
015
016 /**
017 * EnvParametersResource represents resources stored in prefixed environment variables.
018 *
019 * @author Chris Wilkinson <chriswilkinson84@gmail.com>
020 *
021 * @deprecated since version 3.4, to be removed in 4.0
022 */
023 class EnvParametersResource implements SelfCheckingResourceInterface, \Serializable
024 {
025 /**
026 * @var string
027 */
028 private $prefix;
029
030 /**
031 * @var string
032 */
033 private $variables;
034
035 /**
036 * @param string $prefix
037 */
038 public function __construct($prefix)
039 {
040 $this->prefix = $prefix;
041 $this->variables = $this->findVariables();
042 }
043
044 /**
045 * {@inheritdoc}
046 */
047 public function __toString()
048 {
049 return serialize($this->getResource());
050 }
051
052 /**
053 * @return array An array with two keys: 'prefix' for the prefix used and 'variables' containing all the variables watched by this resource
054 */
055 public function getResource()
056 {
057 return ['prefix' => $this->prefix, 'variables' => $this->variables];
058 }
059
060 /**
061 * {@inheritdoc}
062 */
063 public function isFresh($timestamp)
064 {
065 return $this->findVariables() === $this->variables;
066 }
067
068 /**
069 * @internal
070 */
071 public function serialize()
072 {
073 return serialize(['prefix' => $this->prefix, 'variables' => $this->variables]);
074 }
075
076 /**
077 * @internal
078 */
079 public function unserialize($serialized)
080 {
081 if (\PHP_VERSION_ID >= 70000) {
082 $unserialized = unserialize($serialized, ['allowed_classes' => false]);
083 } else {
084 $unserialized = unserialize($serialized);
085 }
086
087 $this->prefix = $unserialized['prefix'];
088 $this->variables = $unserialized['variables'];
089 }
090
091 private function findVariables()
092 {
093 $variables = [];
094
095 foreach ($_SERVER as $key => $value) {
096 if (0 === strpos($key, $this->prefix)) {
097 $variables[$key] = $value;
098 }
099 }
100
101 ksort($variables);
102
103 return $variables;
104 }
105 }
106