For a list of all of the built-in validation constraints, see

:doc:`/reference/constraints`.

Accessing Form Errors

You can use the:method:`Symfony\\Component\\Form\\FormInterface::getErrors`

method to access the list of errors. Each element is a:class:`Symfony\\Component\\Form\\FormError`

object::

..note::

Unless you enable the:ref:`error_bubbling<reference-form-option-error-bubbling>`

option on a particular child form, ``getErrors()`` only returns the errors

of the form it is accessed on. For debugging purposes, you can use the:method:`Symfony\\Component\\Form\\Form::getErrorsAsString` method which

returns a string representation of all errors of the whole form tree.

.. _Packagist:https://packagist.org/packages/symfony/form

.. _Twig:http://twig.sensiolabs.org

.. _`Twig Configuration`:http://twig.sensiolabs.org/doc/intro.html

..include::/reference/forms/types/options/empty_data.rst.inc

:start-after: DEFAULT_PLACEHOLDER

.. _reference-form-option-error-bubbling:

..include::/reference/forms/types/options/error_bubbling.rst.inc

..include::/reference/forms/types/options/error_mapping.rst.inc