normalizers.rst

.. index::
   single: Serializer, Normalizers

Normalizers

Normalizers turn objects into arrays and vice versa. They implement :class:`Symfony\\Component\\Serializer\\Normalizers\\NormalizerInterface` for normalizing (object to array) and :class:`Symfony\\Component\\Serializer\\Normalizers\\DenormalizerInterface` for denormalizing (array to object).

Normalizers are enabled in the serializer passing them as its first argument:

use Symfony\Component\Serializer\Normalizer\ObjectNormalizer;
use Symfony\Component\Serializer\Serializer;

$normalizers = [new ObjectNormalizer()];
$serializer = new Serializer($normalizers);

Built-in Normalizers

Symfony includes the following normalizers but you can also :doc:`create your own normalizer </serializer/custom_normalizer>`:

• :class:`Symfony\\Component\\Serializer\\Normalizer\\ObjectNormalizer` to normalize PHP object using the :doc:`PropertyAccessor component </components/property_access>`;
• :class:`Symfony\\Component\\Serializer\\Normalizer\\CustomNormalizer` to normalize PHP object using an object that implements :class:`Symfony\\Component\\Serializer\\Normalizer\\NormalizableInterface`;
• :class:`Symfony\\Component\\Serializer\\Normalizer\\GetSetMethodNormalizer` to normalize PHP object using the getter and setter methods of the object;
• :class:`Symfony\\Component\\Serializer\\Normalizer\\PropertyNormalizer` to normalize PHP object using PHP reflection.