Stream wrapper support in realpath() View as Markdown

AFAICS realpath() currently only works with files and not other stream
wrappers.

Is there any chance that realpath() will support custom stream wrappers?
I think it can be implemented in a BC way: If the wrapper class doesn't
have a wrapper::realpath() method, realpath() just returns false like it
does today.

I hope this is the right place to ask.

Thanks,
Christian