> > >> > > This ones are predefinded by the zend engine:
> > >> > > Traversable
> > >> > > IteratorAggregate
> > >> > > Iterator
> > >> > > ArrayAccess
> >
> > All these four are part of the engine. (They were in a different form
> > part of spl a long time ago).
>
> Should those predifined interfaces go to an appendix?
>
> Friedhelm
The subject of interfaces/iterators/etc... is difficult to document, as this
is new to PHP.
Those interface are used by SPL, that implements them. I don't really know
if they are usefull to a user...
For example, Transversable is just:
interface Traversable
{
}
This interface *cannot* be used by PHP scripts, so there is no point in
documenting it.... (maybe it can go to the developpers manual).
The interface is something like:
interface Iterator extends Traversable
{
function rewind();
function current();
function key();
function next();
function valid();
}
Why do you need this? Maybe someone could explain me, but it seems pretty
unusefull....
More info at great Marcus' website:
interfaces: http://marcus-boerger.de/php/ext/spl/spl.phps
SPL docs: http://marcus-boerger.de/php/ext/spl/html/ or
http://marcus-boerger.de/php/ext/spl/spl.chm
Nuno
