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Date: Wed, 8 Jun 2011 11:42:41 -0300
Message-ID: <BANLkTimsTt7uQmKz7q=6b6PXige863Nj=A@mail.gmail.com>
To: Alexey Shein <confik@gmail.com>
Cc: Hannes Magnusson <hannes.magnusson@gmail.com>, 
	"Matthew Weier O'Phinney" <weierophinney@php.net>, internals@lists.php.net
Content-Type: multipart/alternative; boundary=90e6ba53aa1c467d8804a534596f
Subject: Re: [PHP-DEV] Callable type
From: martinscotta@gmail.com (Martin Scotta)

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Content-Type: text/plain; charset=ISO-8859-1

 Martin Scotta


On Wed, Jun 8, 2011 at 5:47 AM, Alexey Shein <confik@gmail.com> wrote:

> 2011/6/8 Hannes Magnusson <hannes.magnusson@gmail.com>:
> > We have the situation in the docs that parameters declared as arrays
> > do not follow the typehinting rules, but parameters as class names do.
> > Re-using the callback from the docs could get confusing when
> > extensions start to typehint on it, but not the core..
> >
> > I think there is a subtle difference between a callback, and a callable.
> > In javascript for example, callback is something that is executed on
> > certain events "onsuccess" is the typical example.
> > There is nothing that says the callable parameter gets executed as a
> > part of an event, and I think the default usecase would be to execute
> > it right away (f.e. filtering data).
> >
> > I think I would prefer callable, but I could live with either.
> >
>
> Wikipedia defines callback as "a reference to executable code, or a
> piece of executable code, that is passed as an argument to other
> code". So there's no "event" meaning put by default, it's just very
> often seen callback's usage in javascript.
> I just like "callback" term more :)
>

so 'strpos' is not a reference nor a piece of executable code, it's just the
name of a function, which is callable, although we can argue if the function
name could be seen as a reference to the code

>
>
> --
> Regards,
> Shein Alexey
>
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