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Date: Tue, 14 Jan 2020 12:05:41 -0600
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Subject: Re: [PHP-DEV] [RFC] Allow ::class on objects
From: ralph@ralphschindler.com (Ralph Schindler)



> just return $string, to be consistent with usual behavior of 
> "::CONST_NAME", which allows objects and class names on the left hand side.

Having given it more thought, it seems like like $string::class should 
be more aligned with get_class($string), which at current throws a PHP 
Warning with the message:

"PHP Warning:  get_class() expects parameter 1 to be object, string 
given in ..."


 From the RFC:

> I'm not sure whether we should do that, as I can't imagine a context
> in which this would be useful, and the fact that the class name is
> not validated or loaded might be more unexpected here than usual.

Yes, this would be odd and not useful:

     $hi = 'hello world';
     echo $hi::class // output: hello world

Besides that though, not sure what you mean by:

> Open Question: Additionally, it would be possible to also allow $object
> to be string, in which case the string would be returned verbatim. This
> would be consistent with the $className::CONST_NAME syntax.

As undefined class constants are fatal errors...?

https://3v4l.org/hGW82


Cheers,
-ralph