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   1  <?php
   2  
   3  declare(strict_types=1);
   4  
   5  /*
   6   * The MIT License (MIT)
   7   *
   8   * Copyright (c) 2014-2020 Spomky-Labs
   9   *
  10   * This software may be modified and distributed under the terms
  11   * of the MIT license.  See the LICENSE file for details.
  12   */
  13  
  14  namespace Jose\Component\Signature\Serializer;
  15  
  16  use function array_key_exists;
  17  
  18  abstract class Serializer implements JWSSerializer
  19  {
  20      protected function isPayloadEncoded(array $protectedHeader): bool
  21      {
  22          return !array_key_exists('b64', $protectedHeader) || true === $protectedHeader['b64'];
  23      }
  24  }