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Date: Mon, 18 Nov 2013 16:57:38 +0100
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To: Alexey Zakhlestin <indeyets@gmail.com>
Cc: PHP internals <internals@lists.php.net>
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Subject: Re: [PHP-DEV] foreach and current()
From: scope@planetavent.de (Nicolai Scheer)

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Hi!

On Mon, Nov 18, 2013 at 3:40 PM, Alexey Zakhlestin <indeyets@gmail.com>wrote:

> On 18.11.13, 18:14, Nicolai Scheer wrote:
> > Hi all!
> >
> [using current() inside for loop does not work]
> >
> > Does anyone know what the reasoning behind this behavious is?
>
> current() implementation predates foreach and is totally separate. Main
> difference is, that current()'s "pointer" is attached to the array, and
> foreach's pointer is external.
>
> so you can not run several each()/current() loops on array at the same
> time, but you can have any number of nested foreach's iterating over the
> same array independently.
>
> They can't really be combined because of backwards compatibility
>

Ok, thanks for the clarification. Maybe inserting a hint about this into
the documentation should be considered.
Actually I would not use such code in the wild, it was more an educational
question. :)

Greetings

Nico

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