.. _cannot-use--"static-"-as-method-modifier-in-trait-alias:

Cannot use \"static\" as method modifier in trait alias
-------------------------------------------------------
 
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	:description:
		Cannot use \"static\" as method modifier in trait alias: The ``as`` adaptation syntax used with ``use`` (traits) can only change the visibility of an imported method, or give it a new alias.
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	:og:title: Cannot use \"static\" as method modifier in trait alias
	:og:description: The ``as`` adaptation syntax used with ``use`` (traits) can only change the visibility of an imported method, or give it a new alias
	:og:url: https://php-errors.readthedocs.io/en/latest/messages/cannot-use--%22static-%22-as-method-modifier-in-trait-alias.html
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Description
___________
 
The ``as`` adaptation syntax used with ``use`` (traits) can only change the visibility of an imported method, or give it a new alias. It cannot be used to add the ``static`` modifier to a method: a trait method's static-ness is fixed by how it is declared in the trait itself, and cannot be altered by the class that imports it.

Example
_______

.. code-block:: php

   <?php
   
   trait Greet
   {
       public function hello()
       {
           echo 'hi';
       }
   }
   
   class X
   {
       use Greet {
           hello as static greetStatically;
       }
   }
   
   ?>


Literal Examples
****************
+ Cannot use "static" as method modifier in trait alias

Solutions
_________

+ Remove the ``static`` modifier from the ``as`` adaptation, and only change the visibility or the alias name.
+ Declare the method as ``static`` directly in the trait, if that is the intended behavior.

Related Error Messages
______________________

+ :ref:`a-precedence-rule-was-defined-for-%s::%s-but-this-method-does-not-exist`
+ :ref:`an-alias-was-defined-for-%s::%s-but-this-method-does-not-exist`
+ :ref:`trait-method-%s::%s-has-not-been-applied-as-%s::%s`

Changed Behavior
________________

This error may appear following an evolution in behavior, in previous versions. See ` <https://php-changed-behaviors.readthedocs.io/en/latest/behavior/.html>`_.