.. _traits-constantsintraits:

.. _constants-in-traits:

Constants In Traits
+++++++++++++++++++

  Traits may have their own constants. This feature was introduced in PHP 8.2 and is not backward compatible.

.. code-block:: php
   
   <?php
   
   trait t {
   	const A = 1;
   }
   
   ?>

See also `PHP RFC: Constants in Traits <https://wiki.php.net/rfc/constants_in_traits>`_ and `Ability to use Constants in Traits in PHP 8.2 <https://www.amitmerchant.com/traits-constants-php-82/>`_.


Specs
_____

+--------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Short name   | Traits/ConstantsInTraits                                                                                                                                                                                                                                                                                                                                             |
+--------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Rulesets     | :ref:`All <ruleset-All>`, :ref:`Changed Behavior <ruleset-Changed-Behavior>`, :ref:`CompatibilityPHP74 <ruleset-CompatibilityPHP74>`, :ref:`CompatibilityPHP80 <ruleset-CompatibilityPHP80>`, :ref:`CompatibilityPHP81 <ruleset-CompatibilityPHP81>`, :ref:`CompatibilityPHP82 <ruleset-CompatibilityPHP82>`, :ref:`CompatibilityPHP83 <ruleset-CompatibilityPHP83>` |
+--------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Exakat since | 2.5.3                                                                                                                                                                                                                                                                                                                                                                |
+--------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Severity     | Minor                                                                                                                                                                                                                                                                                                                                                                |
+--------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Time To Fix  | Quick (30 mins)                                                                                                                                                                                                                                                                                                                                                      |
+--------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Precision    | Very high                                                                                                                                                                                                                                                                                                                                                            |
+--------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Features     | constant, trait                                                                                                                                                                                                                                                                                                                                                      |
+--------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Available in | `Entreprise Edition <https://www.exakat.io/entreprise-edition>`_, `Exakat Cloud <https://www.exakat.io/exakat-cloud/>`_                                                                                                                                                                                                                                              |
+--------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+