Req #41072 [Opn->Wfx]: Make instanceof work without the need of creating the object first

Edit report at https://bugs.php.net/bug.php?id=41072&edit=1 ID: 41072 Updated by: nikic@php.net Reported by: atomo64 at gmail dot com Summary: Make instanceof work without the need of creating the object first -Status: Open +Status: Wont fix Type: Feature/Change Request -Package: Feature/Change Request +Package: *General Issues Operating System: Linux 2.6.18 SMP i686 PHP Version: 5.2.1 Block user comment: N Private report: N New Comment: You should be able to check this with the is_subclass_of function. Previous Comments: ------------------------------------------------------------------------ [2007-04-29 12:07:14] stas@php.net I'd suggest you use reflection for this: http://www.php.net/reflection ------------------------------------------------------------------------ [2007-04-13 00:49:11] atomo64 at gmail dot com Description: ------------ At the moment instanceof requires the first 'parameter' to be an object of the class which is to be compared. It would be useful to be able to check without creating the object. Reproduce code: --------------- <?php class MyClass {} $class = 'MyClass'; var_dump($class instanceof MyClass); var_dump($$class instanceof MyClass); var_dump(MyClass instanceof MyClass); ?> Expected result: ---------------- bool(false) bool(true) bool(true) Actual result: -------------- bool(false) bool(false) bool(false) ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=41072&edit=1