Applies to:ref:`property or method<validation-property-target>`

Options - `groups`_

Options - `allowedVariables`_

- `groups`_

- `message`_

- `names`_

- `payload`_

- `validateNames`_

Class:class:`Symfony\\Component\\Validator\\Constraints\\ExpressionLanguageSyntax`

Validator:class:`Symfony\\Component\\Validator\\Constraints\\ExpressionLanguageSyntaxValidator`

..code-block::xml

Options

allowedVariables

**type**: ``array`` or ``null`` **default**: ``null``

If this option is defined, the expression can only use the variables whose names

are included in this option. Unset this option or set its value to ``null`` to

allow any variables.

..include::/reference/constraints/_groups-option.rst.inc

message

This is the message displayed when the validation fails.

names

**type**: ``array`` or ``null`` **default**: ``null``

If the ``validateNames`` is ``true``, the expression can only use the variables

whose names are included in this array. Use ``null`` to allow expressions to use

any variables.

..include::/reference/constraints/_payload-option.rst.inc

validateNames

**type**: ``bool`` **default**: ``false``

Set this option to ``true`` to require the expression to use only the variable

names defined in the ``names`` option.

.. _`ExpressionLanguage`:https://symfony.com/components/ExpressionLanguage