.. _get_object_vars()-does-not-work-on-arrayobject:

get_object_vars() Does Not Work On ArrayObject
==============================================
.. meta::
	:description:
		get_object_vars() Does Not Work On ArrayObject: Until PHP 7.
	:twitter:card: summary_large_image
	:twitter:site: @exakat
	:twitter:title: get_object_vars() Does Not Work On ArrayObject
	:twitter:description: get_object_vars() Does Not Work On ArrayObject: Until PHP 7
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	:og:image: https://php-changed-behaviors.readthedocs.io/en/latest/_static/logo.png
	:og:title: get_object_vars() Does Not Work On ArrayObject
	:og:type: article
	:og:description: Until PHP 7
	:og:url: https://php-tips.readthedocs.io/en/latest/tips/getObjectVars.html
	:og:locale: en

Until PHP 7.4, ``ArrayObject`` used to export its properties as they were defined in the array. Since then, ``ArrayObject`` does not export any property anymore. They are still accessible via the normal property syntax, just not with ``get_object_vars()`` anymore.

PHP code
________
.. code-block:: php

   <?php
   
   // Illustration courtesy of Doug Bierer
   $obj = new ArrayObject(['A' => 1,'B' => 2,'C' => 3]);
   var_dump($obj->getArrayCopy());
   var_dump(get_object_vars($obj));
   //var_dump((array) $obj);
   
   ?>

Before
______
.. code-block:: output

   array(3) {
     [A]=>
     int(1)
     [B]=>
     int(2)
     [C]=>
     int(3)
   }
   array(3) {
     [A]=>
     int(1)
     [B]=>
     int(2)
     [C]=>
     int(3)
   }
   

After
______
.. code-block:: output

   array(3) {
     [A]=>
     int(1)
     [B]=>
     int(2)
     [C]=>
     int(3)
   }
   array(0) {
   }
   


PHP version change
__________________
This behavior changed in 7.4