.. _cannot-use-auto-global-as-lexical-variable:

Cannot use auto-global as lexical variable
------------------------------------------
 
.. meta::
	:description:
		Cannot use auto-global as lexical variable: A lexical variable is the variables used in the ``use`` part of a closure definition.
	:og:image: https://php-errors.readthedocs.io/en/latest/_static/logo.png
	:og:type: article
	:og:title: Cannot use auto-global as lexical variable
	:og:description: A lexical variable is the variables used in the ``use`` part of a closure definition
	:og:url: https://php-errors.readthedocs.io/en/latest/messages/cannot-use-auto-global-as-lexical-variable.html
	:og:locale: en
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	:twitter:site: @exakat
	:twitter:title: Cannot use auto-global as lexical variable
	:twitter:description: Cannot use auto-global as lexical variable: A lexical variable is the variables used in the ``use`` part of a closure definition
	:twitter:creator: @exakat
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Description
___________
 
A lexical variable is the variables used in the ``use`` part of a closure definition. These variable will be imported in the closure. In this case, the variable is an auto-global variable, which is included in every context, so this is useless.

Example
_______

.. code-block:: php

   <?php
   
   function () use ($_POST) {
       
   };
   
   ?>

Solutions
_________

+ Remove the auto-global from the list of imported variable (in the use clause).
+ Remove the use clause, if that variable is there alone.

Related Error Messages
______________________

+ :ref:`cannot-re-assign-$this`
+ :ref:`cannot-re-assign-auto-global-variable-%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>`_.