Bug #78508 [Opn->Csd]: PHP does not emit a warning when some types are accessed with an index

Edit report at https://bugs.php.net/bug.php?id=78508&edit=1 ID: 78508 Updated by: nikic@php.net Reported by: michael dot vorisek at email dot cz Summary: PHP does not emit a warning when some types are accessed with an index -Status: Open +Status: Closed Type: Bug Package: *General Issues Operating System: Linux PHP Version: 7.3.9 -Assigned To: +Assigned To: nikic Block user comment: N Private report: N New Comment: A notice for this has already been added in PHP 7.4. Previous Comments: ------------------------------------------------------------------------ [2019-09-07 09:06:04] michael dot vorisek at email dot cz Description: ------------ I found out that current PHP does not emit warnings at least for the following expressions: a) if boolean is accessed with index: false['x'] b) if null is accessed with index: null['x'] in contrary with string type, which emits the following message: Warning: Illegal string offset 'x'... Notice: Uninitialized string offset: 0 I would expect PHP to emit at least Notice warning. Is this a bug which needs to be addressed or is this an intended behaviour for some use case/backcompatibility that requires no warning? Test script: --------------- see desc. ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=78508&edit=1