[Summary view] [Print] [Text view]

   1  <?php
   2  
   3  /*
   4   * This file is part of the Symfony package.
   5   *
   6   * (c) Fabien Potencier <fabien@symfony.com>
   7   *
   8   * For the full copyright and license information, please view the LICENSE
   9   * file that was distributed with this source code.
  10   */
  11  
  12  namespace Symfony\Component\HttpKernel\Config;
  13  
  14  use Symfony\Component\Config\Resource\SelfCheckingResourceInterface;
  15  
  16  /**
  17   * EnvParametersResource represents resources stored in prefixed environment variables.
  18   *
  19   * @author Chris Wilkinson <chriswilkinson84@gmail.com>
  20   *
  21   * @deprecated since version 3.4, to be removed in 4.0
  22   */
  23  class EnvParametersResource implements SelfCheckingResourceInterface, \Serializable
  24  {
  25      /**
  26       * @var string
  27       */
  28      private $prefix;
  29  
  30      /**
  31       * @var string
  32       */
  33      private $variables;
  34  
  35      /**
  36       * @param string $prefix
  37       */
  38      public function __construct($prefix)
  39      {
  40          $this->prefix = $prefix;
  41          $this->variables = $this->findVariables();
  42      }
  43  
  44      /**
  45       * {@inheritdoc}
  46       */
  47      public function __toString()
  48      {
  49          return serialize($this->getResource());
  50      }
  51  
  52      /**
  53       * @return array An array with two keys: 'prefix' for the prefix used and 'variables' containing all the variables watched by this resource
  54       */
  55      public function getResource()
  56      {
  57          return ['prefix' => $this->prefix, 'variables' => $this->variables];
  58      }
  59  
  60      /**
  61       * {@inheritdoc}
  62       */
  63      public function isFresh($timestamp)
  64      {
  65          return $this->findVariables() === $this->variables;
  66      }
  67  
  68      /**
  69       * @internal
  70       */
  71      public function serialize()
  72      {
  73          return serialize(['prefix' => $this->prefix, 'variables' => $this->variables]);
  74      }
  75  
  76      /**
  77       * @internal
  78       */
  79      public function unserialize($serialized)
  80      {
  81          if (\PHP_VERSION_ID >= 70000) {
  82              $unserialized = unserialize($serialized, ['allowed_classes' => false]);
  83          } else {
  84              $unserialized = unserialize($serialized);
  85          }
  86  
  87          $this->prefix = $unserialized['prefix'];
  88          $this->variables = $unserialized['variables'];
  89      }
  90  
  91      private function findVariables()
  92      {
  93          $variables = [];
  94  
  95          foreach ($_SERVER as $key => $value) {
  96              if (0 === strpos($key, $this->prefix)) {
  97                  $variables[$key] = $value;
  98              }
  99          }
 100  
 101          ksort($variables);
 102  
 103          return $variables;
 104      }
 105  }