JsonEncode.php

<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace Symfony\Component\Serializer\Encoder;


/**
 * Encodes JSON data
 *
 * @author Sander Coolen <sander@jibber.nl>
 */
class JsonEncode implements EncoderInterface {
  private $options;
  private $lastError = JSON_ERROR_NONE;
  public function __construct($bitmask = 0) {
    $this->options = $bitmask;
  }

  /**
   * Returns the last encoding error (if any)
   *
   * @return integer
   *
   * @see http://php.net/manual/en/function.json-last-error.php json_last_error
   */
  public function getLastError() {
    return $this->lastError;
  }

  /**
   * Encodes PHP data to a JSON string
   *
   * {@inheritdoc}
   */
  public function encode($data, $format, array $context = array()) {
    $context = $this
      ->resolveContext($context);
    $encodedJson = json_encode($data, $context['json_encode_options']);
    $this->lastError = json_last_error();
    return $encodedJson;
  }

  /**
   * {@inheritdoc}
   */
  public function supportsEncoding($format) {
    return JsonEncoder::FORMAT === $format;
  }

  /**
   * Merge default json encode options with context.
   *
   * @param array $context
   * @return array
   */
  private function resolveContext(array $context = array()) {
    return array_merge(array(
      'json_encode_options' => $this->options,
    ), $context);
  }

}