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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\Config\Definition\Exception;
  13  
  14  /**
  15   * This exception is thrown whenever the key of an array is not unique. This can
  16   * only be the case if the configuration is coming from an XML file.
  17   *
  18   * @author Johannes M. Schmitt <schmittjoh@gmail.com>
  19   */
  20  class DuplicateKeyException extends InvalidConfigurationException
  21  {
  22  }