Bug #80836 [Nab]: is_array defies it own purpose by throwing fatal when passed an stdClass

Edit report at https://bugs.php.net/bug.php?id=80836&edit=1 ID: 80836 User updated by: chris at summit-tech dot ca Reported by: chris at summit-tech dot ca Summary: is_array defies it own purpose by throwing fatal when passed an stdClass Status: Not a bug Type: Bug Package: Compile Failure Operating System: Windows PHP Version: 8.0.3 Block user comment: N Private report: N New Comment: Yep my apologies and i think the ticket reopened because we submitted our comment at the same moment :) Previous Comments: ------------------------------------------------------------------------ [2021-03-05 21:21:58] daverandom@php.net Not sure why my comment re-opened, re-closing ------------------------------------------------------------------------ [2021-03-05 21:21:03] daverandom@php.net Sorry, but your problem does not imply a bug in PHP itself. For a list of more appropriate places to ask for help using PHP, please visit http://www.php.net/support.php as this bug system is not the appropriate forum for asking support questions. Due to the volume of reports we can not explain in detail here why your report is not a bug. The support channels will be able to provide an explanation for you. Thank you for your interest in PHP. The error produced by this code is due to treating an undefined variable as an object, nothing to do with is_array() https://3v4l.org/hOQov Although it is possible to implicitly declare an array in this fashion, the same is not true of an object, which is a reference value and thus cannot be used unless it has been explicitly created. ------------------------------------------------------------------------ [2021-03-05 21:20:44] chris at summit-tech dot ca Incorrectly described, closing ------------------------------------------------------------------------ [2021-03-05 21:14:28] chris at summit-tech dot ca Description: ------------ This function has been rendered utterly useless as passing it some non-array objects such as stdClass results in a ridiculous error: Fatal error: Uncaught Error: Cannot use object of type stdClass as array Test script: --------------- $test->bla = "bla"; //Forcibly makes an stdClass obj if (is_array($test)){ echo "This doesn't run"; } Expected result: ---------------- is_array should return false and not stupidly throw a fatal Actual result: -------------- fatal error that defies the purpose of this function's entire existence ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=80836&edit=1