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Date: Thu, 3 Sep 2020 17:52:30 +0200
Message-ID: <CADyq6sJCaWJLs=fJpQgwxUijO7JToJfOe-tRzSPKSLWk_sMv5A@mail.gmail.com>
To: David Rodrigues <david.proweb@gmail.com>
Cc: PHP internals <internals@lists.php.net>
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Subject: Re: [PHP-DEV] Draft RFC: foreach iteration of keys without values
From: ocramius@gmail.com (Marco Pivetta)

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On Thu, Sep 3, 2020 at 5:35 PM David Rodrigues <david.proweb@gmail.com>
wrote:

> > Question for those who know about opcache optimizations: is it
> > feasible to avoid fetching the current value if the value is otherwise
> > unused and the variable-variable features are not used either?
>

TBH, this sounds like the best approach: optimizing the `foreach
(\array_keys($input) as $key) {` structure, when detected.

That would make it zero impact from an RFC/userland perspective, and the OP
by John is in fact about a performance concern, while we already have a
very expressive way to do key iteration.

Marco Pivetta

http://twitter.com/Ocramius

http://ocramius.github.com/

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