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To: Nikita Popov <nikita.ppv@gmail.com>
Cc: PHP internals <internals@lists.php.net>
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Subject: Re: [PHP-DEV] [RFC] [Vote] Short Ternary Assignment Operator
From: pollita@php.net (Sara Golemon)

On Thu, Mar 24, 2016 at 9:45 AM, Nikita Popov <nikita.ppv@gmail.com> wrote:
> To clarify, as the RFC only mentions this by implication:
>
>     unset($x); // Assume $x is undefined
>     $x ?:= $y;
>
> This will throw a notice, correct?
>
Yes.  The equivalent short-ternary:

$x = $x ?: $y;

would throw a notice, so the assignment version should (and would) as well.