.. _structures-arraycounttripleequal:

.. _empty-array-detection:

Empty Array Detection
+++++++++++++++++++++

  Empty arrays may be detected with different solutions. 
This analysis includes comparison to 0 with count, with ==, ===, != and !==, and comparison to empty arrays. Constants are not handled.

.. code-block:: php
   
   <?php
   
   // comparison to empty array
   $array === [];
   
   // comparison of count() 
   count($array) === 0;
   
   ?>

Specs
_____

+--------------+-------------------------------------------------------------------------------------------------------------------------+
| Short name   | Structures/ArrayCountTripleEqual                                                                                        |
+--------------+-------------------------------------------------------------------------------------------------------------------------+
| Rulesets     | :ref:`All <ruleset-All>`, :ref:`Preferences <ruleset-Preferences>`                                                      |
+--------------+-------------------------------------------------------------------------------------------------------------------------+
| Exakat since | 2.4.7                                                                                                                   |
+--------------+-------------------------------------------------------------------------------------------------------------------------+
| PHP Version  | All                                                                                                                     |
+--------------+-------------------------------------------------------------------------------------------------------------------------+
| Severity     | Minor                                                                                                                   |
+--------------+-------------------------------------------------------------------------------------------------------------------------+
| Time To Fix  | Quick (30 mins)                                                                                                         |
+--------------+-------------------------------------------------------------------------------------------------------------------------+
| Precision    | High                                                                                                                    |
+--------------+-------------------------------------------------------------------------------------------------------------------------+
| Available in | `Entreprise Edition <https://www.exakat.io/entreprise-edition>`_, `Exakat Cloud <https://www.exakat.io/exakat-cloud/>`_ |
+--------------+-------------------------------------------------------------------------------------------------------------------------+