On Tue, 09 Aug 2005 13:24:56 +0300
[EMAIL PROTECTED] (Pasha Zubkov) wrote:
> Alan Knowles wrote:
> > The basic point is that is_a() provided negative testing of
> > non-existant classes
> > if (!is_a($obj, "SomeRarelyUsedClass")) { ....
> >
> > instance_of does not, and can not, at present.
>
> You can use `if (!($obj instanceof SomeRarelyUsedClass))` ;)
>
> Why statement `$obj instanceof NotLoadedClass` can't evaluate as
> FALSE if class not loaded (what with serialized objects?) because
> if class not loaded, than object can't be instanceof this class,
> right?
We do __not__ know that.
This test tries to figure that out, exactly that. So no, it must
not end to a fatal error.
--Pierre
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