At 12:12 09.04.2002, Pierre-Alain Joye wrote:

> > I have failed to understand what interfaces would mean
> > in a language such as PHP, though, while I can see the clear hands-on use
> > for MI.  Can you explain how you envision interfaces as useful constructs
> > in PHP, and their advantages over MI, considering the fact all of the
> > binary compatibility issues don't apply?
>The only needs of interfaces I see is only for php encoded and closed source
>(we can called them binaries ;) ). And in this case, I do not like it ;).
>
>a+
>
>pa

Would it be so bad allowing closed source?

And you are missing the modelling aspect.
I think having one of MI, aggregation and interfaces is essential for OO 
modelling.

marcus


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