Posted by Marco Schuler on 02/01/05 17:07

Hi

Am Dienstag, 1. Februar 2005 15:50 schrieb Jochem Maas:
> Marco Schuler wrote:
> > Hi
> >
> > I found a function declaration in an open source project (in
> > php5) and I could not find documantation for this. The function
> > declaration is:
> >
> > public function registerComp(IComp $comp)
> >
> > Is it a kind of typecast?
>
> no its a type declaration (is that the correct term). it states
> that $comp must be an object of class IComp (or a subclass of it).
> if $comp is not anj IComp object you get a fatal error.

Where can I find this in the manual? IComp can also be an interface,
right?

> this only works for classes. and it does not work in conjunction
> with optional params e.g:
>
> public function registerComp(IComp $comp = null) { /*....*/ }

With optional params you mean actually the variable initialisation
within the declaration, right?

--
Cheers!
Marco

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