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Date: Sat, 14 Aug 2021 17:51:14 +0430
Message-ID: <CAEMvS4GbFVLCe-ebwNsnn7eLkWTtMKFux3fQn8pV-5HNczx20g@mail.gmail.com>
To: Nikita Popov <nikita.ppv@gmail.com>
Cc: PHP internals <internals@lists.php.net>
Content-Type: multipart/alternative; boundary="00000000000059168f05c984ded2"
Subject: Re: [PHP-DEV] Unwrap reference after foreach
From: hossein.baghayi@gmail.com (Hossein Baghayi)

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On Fri, 13 Aug 2021 at 17:59, Nikita Popov <nikita.ppv@gmail.com> wrote:

> I'd like to address a common footgun when using foreach by reference:
> https://wiki.php.net/rfc/foreach_unwrap_ref
>

Hello,
I had a question regarding this.
Wouldn't it be possible to limit ```$value```'s scope to only foreach's
block then discard it? Unless it was already defined elsewhere.

```
foreach($nice_stuff as &$value) {} //we are done here and no need to keep
value around.

echo $value; // $value is Undefined here.

$value = null;
foreach($stuff as &$value) {} //we can keep the value here since it doesn't
belong to foreach.

echo $value; // prints some fancy pancy stuff
```

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