--- /dev/null
+<?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;
+
+use Symfony\Component\Serializer\Exception\UnexpectedValueException;
+
+/**
+ * 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 int
+ *
+ * @deprecated since version 2.5, to be removed in 3.0.
+ * The {@self encode()} throws an exception if error found.
+ * @see http://php.net/manual/en/function.json-last-error.php json_last_error
+ */
+ public function getLastError()
+ {
+ @trigger_error('The '.__METHOD__.' method is deprecated since version 2.5 and will be removed in 3.0. Catch the exception raised by the encode() method instead to get the last JSON encoding error.', E_USER_DEPRECATED);
+
+ 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']);
+
+ if (JSON_ERROR_NONE !== $this->lastError = json_last_error()) {
+ throw new UnexpectedValueException(json_last_error_msg());
+ }
+
+ 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);
+ }
+}