Method, procedure, function. It's all the same thing. The thing that differes is how you call them. I'd say that 
sub Foo::new {
  bless {}, $_[0];
}

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is still a method even if you call it with Foo::new($class).

I can say black is white and white is black all day, but I'm still going to get run over at the next zebra crossing because it's not true. Method calls are invoked using $instance->method_name(). That form searches the @ISA tree. Foo::new() is calling a fully specified subroutine. No amount of wishful thinking will ever make that into a method call. Perl is rather flexible in that it will allow you to call most subroutines either way.

And strictly speaking (in a computer sciencey manner), there is a specific difference between a procedure and a function. Compare and contrast foldoc's definitions for function and procedure

In reply to Um, no. by Fletch
in thread Tie-ing hashes clobbers data by Dave05

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