.. _structures-unusedglobal:

.. _unused-global:

Unused Global
+++++++++++++

  A global keyword is used in a method, yet the variable is not actually used. This makes PHP import values for nothing, or may create interference

.. code-block:: php
   
   <?php
       function foo() {
           global bar;
           
           return 1;
       }
   ?>
Connex PHP features
-------------------

  + `global <https://php-dictionary.readthedocs.io/en/latest/dictionary/global.ini.html>`_
  + `unused <https://php-dictionary.readthedocs.io/en/latest/dictionary/unused.ini.html>`_


Suggestions
___________

* Remove the global declaration
* Remove the global variable altogether




Specs
_____

+--------------+-------------------------------------------------------------------------------------------------------------------------+
| Short name   | Structures/UnusedGlobal                                                                                                 |
+--------------+-------------------------------------------------------------------------------------------------------------------------+
| Rulesets     | :ref:`All <ruleset-All>`, :ref:`Analyze <ruleset-Analyze>`, :ref:`Changed Behavior <ruleset-Changed-Behavior>`          |
+--------------+-------------------------------------------------------------------------------------------------------------------------+
| Exakat since | 0.8.4                                                                                                                   |
+--------------+-------------------------------------------------------------------------------------------------------------------------+
| PHP Version  | All                                                                                                                     |
+--------------+-------------------------------------------------------------------------------------------------------------------------+
| Severity     | Minor                                                                                                                   |
+--------------+-------------------------------------------------------------------------------------------------------------------------+
| Time To Fix  | Quick (30 mins)                                                                                                         |
+--------------+-------------------------------------------------------------------------------------------------------------------------+
| Precision    | Very high                                                                                                               |
+--------------+-------------------------------------------------------------------------------------------------------------------------+
| Examples     | :ref:`case-dolphin-structures-unusedglobal`                                                                             |
+--------------+-------------------------------------------------------------------------------------------------------------------------+
| Available in | `Entreprise Edition <https://www.exakat.io/entreprise-edition>`_, `Exakat Cloud <https://www.exakat.io/exakat-cloud/>`_ |
+--------------+-------------------------------------------------------------------------------------------------------------------------+