Req #64871 [Com]: The ::class operator should verify the class name

Edit report at https://bugs.php.net/bug.php?id=64871&edit=1 ID: 64871 Comment by: jan dot kahoun at heureka dot cz Reported by: vrana@php.net Summary: The ::class operator should verify the class name Status: Wont fix Type: Feature/Change Request Package: Class/Object related Operating System: Any PHP Version: 5.5.0RC1 Assigned To: ralphschindler Block user comment: N Private report: N New Comment: I think, that this is not expected behaviour for many developers. You should documented it at http://php.net/manual/en/language.oop5.basic.php#language.oop5.basic.class.class Previous Comments: ------------------------------------------------------------------------ [2013-05-17 22:15:21] vrana@php.net Ralph, David is referring to https://bugs.php.net/61467. I agree that this is not the best place for the discussion about that. ------------------------------------------------------------------------ [2013-05-17 20:13:20] ralphschindler@php.net David, I am not sure what behavior you're referencing. When does callable trigger autoload? Perhaps this is a conversation for the internals mailing list? ------------------------------------------------------------------------ [2013-05-17 18:34:04] David at grudl dot com Ralph, totally agree. What do you think about fixing type hint "callable" to not trigger autoloading? ------------------------------------------------------------------------ [2013-05-17 18:23:40] vrana@php.net Makes sense, thanks for the explanation. ------------------------------------------------------------------------ [2013-05-17 17:16:08] ralphschindler@php.net I believe this came up, and I wouldn't support this. This would be inconsistent with the current implementation of namespaces. use Foo\Bar\Baz; for example, does not check the existence of Baz on "use". It is not not till a type is used (either statically called or used to create a new instance of via new) that it will trigger autoloading (if there is one). There are many places in PHP where type names are used, method signatures, and even in the following example: $x = new stdClass; var_dump($x instanceof FooBar); PHP will not attempt to autoload FooBar to for the purposes of instanceof. If you need to know that a particular type exists, class_exists(foo::class, true); should do what you need. If you feel differently, I think you should bring this up on the internals mailing list. ------------------------------------------------------------------------ The remainder of the comments for this report are too long. To view the rest of the comments, please view the bug report online at https://bugs.php.net/bug.php?id=64871 -- Edit this bug report at https://bugs.php.net/bug.php?id=64871&edit=1