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   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\CacheClearer;
  13  
  14  /**
  15   * ChainCacheClearer.
  16   *
  17   * @author Dustin Dobervich <ddobervich@gmail.com>
  18   *
  19   * @final since version 3.4
  20   */
  21  class ChainCacheClearer implements CacheClearerInterface
  22  {
  23      protected $clearers;
  24  
  25      /**
  26       * Constructs a new instance of ChainCacheClearer.
  27       *
  28       * @param array $clearers The initial clearers
  29       */
  30      public function __construct($clearers = [])
  31      {
  32          $this->clearers = $clearers;
  33      }
  34  
  35      /**
  36       * {@inheritdoc}
  37       */
  38      public function clear($cacheDir)
  39      {
  40          foreach ($this->clearers as $clearer) {
  41              $clearer->clear($cacheDir);
  42          }
  43      }
  44  
  45      /**
  46       * Adds a cache clearer to the aggregate.
  47       *
  48       * @deprecated since version 3.4, to be removed in 4.0, inject the list of clearers as a constructor argument instead.
  49       */
  50      public function add(CacheClearerInterface $clearer)
  51      {
  52          @trigger_error(sprintf('The "%s()" method is deprecated since Symfony 3.4 and will be removed in 4.0, inject the list of clearers as a constructor argument instead.', __METHOD__), \E_USER_DEPRECATED);
  53  
  54          $this->clearers[] = $clearer;
  55      }
  56  }