Hello gods of PHP development ;-)
I'm just a PHP-programmer, but I've been reading the PHP6 discussions
here for a while, especially the talk about MI vs interfaces.
I've been all for MI up to the moment where Marcus Boerger came up with
this:
> class Document implements Printable {
> delegate Printable $print;
>
> function __construct() {
> $this->print = new PrintHandler($this);
> }
This combines the pros of MI with the advantages of "favour composition
over inheritance". I took this snippet an posted is an argument against
MI on our team's private newsgroup server. Then there was a reaction
that left me baffled:
> MI in PHP? Sure, they have to. MI being polarising is no reason that
> it shouldn't be implemented. MI can be very handy and it belongs in
> a language used by people that want quick solutions. People being
> all against it for academic or paedagogic reasons have simply
> chosen the wrong battleground for their disussions.
This is a valid argument. PHP has always been the BORG language that
assimilates every positive aspect of other languages. Nowadays PHP users
can use complex class hierarchies, interfaces, expections ans a lot
more. But they may still use simple functions and use "global" for their
variables.
So why not? Give the "users" namespaces and hide them if they don't use
them (global namespace for all existing code). Give them multiple
inheritance but retain the interfaces. And first of all, implement
Marcus Boergers suggestion for native "delegates". *g*
AllOLLi
____________
"Help? Moi?"
[Sawyer on LOST 115]
