Bug #81675 [Opn]: Undocumented change in get_class_vars behaviour with static properties in 8.1

Edit report at https://bugs.php.net/bug.php?id=81675&edit=1 ID: 81675 Updated by: derick@php.net Reported by: diede at yoast dot com Summary: Undocumented change in get_class_vars behaviour with static properties in 8.1 Status: Open Type: Bug Package: *General Issues PHP Version: 8.1.0 Block user comment: N Private report: N New Comment: It's possibly a side effect of https://wiki.php.net/rfc/static_variable_inheritance Previous Comments: ------------------------------------------------------------------------ [2021-11-30 10:56:38] diede at yoast dot com Description: ------------ I have a feeling that get_class_vars() received a bugfix. Previously it included the current value of a static property, but now returns the default/initial value instead. This now matches the documentation, but the behaviour of previous PHP versions didn't match the documentation. I can't find anything in the changelogs, docs and RFCs. Here's where we looked: - https://github.com/php/php-src/blob/php-8.1.0/UPGRADING - https://www.php.net/manual/en/migration81.php - https://www.php.net/manual/en/function.get-class-vars.php - https://wiki.php.net/rfc#php_81 - https://github.com/php/php-src/blob/php-8.1.0/NEWS This could at the very least be considered a breaking change and should be documented. Test script: --------------- <?php // https://3v4l.org/RjVk0 class MyClass { public static $myProperty; } MyClass::$myProperty = 3; var_dump( get_class_vars( MyClass::class ) ); Expected result: ---------------- // Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.26, 8.0.0 - 8.0.13 array(1) { ["myProperty"]=> int(3) } Actual result: -------------- // Output for 8.1.0 array(1) { ["myProperty"]=> NULL } ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=81675&edit=1