Subroutine Calling Conventions
In trying to find places that I might be able to exchange links to get traffic to my tutorial site, I found an article about how one should determine if a tutorial is good. One of the things that they mention is that a tutorial that teaches
as a valid subroutine calling convention is out of date. It continues to explain that this does do something, but not what people think it does.
As a matter of fact, I just finished writing a major tutorial on subroutines myself last night. I have looked at numerous resources, all of which say
(I know that's slightly different, but similar enough to cause alarm) and
are both acceptable. I looked again today, and found the same information. So could someone please clear this up...what (if any) difference is there between these two conventions, and am I making some major mistake if I write tutorials with the ampersand method?