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Date: Thu, 12 Sep 2019 15:33:06 +0200
Message-ID: <CADyq6s+C07KABQcZ9x+vgH8pYdVcGZcx6m8Dg+E+LYn1RgOLoA@mail.gmail.com>
To: Rowan Tommins <rowan.collins@gmail.com>
Cc: PHP internals <internals@lists.php.net>
Content-Type: multipart/alternative; boundary="000000000000360afe05925b2ec9"
Subject: Re: [PHP-DEV] [RFC] Reclassifying engine warnings
From: ocramius@gmail.com (Marco Pivetta)

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Hey Rowan,
<http://ocramius.github.com/>


On Thu, Sep 12, 2019 at 3:30 PM Rowan Tommins <rowan.collins@gmail.com>
wrote:

> For instance, for undefined array keys, what if we had an operator for
> "initialise and retrieve", such as $foo[? 'bar']. Then we could simplify
> ugly code like this:
>
> if ( ! isset($foo[$key1]) {
>    $foo[$key1] = [];
> }
> if ( ! isset($foo[$key1][$key2]) {
>    $foo[$key1][$key2] = 0;
> }
> $foo[$key1][$key2]++;
>
>
> With something safe but succinct like this:
>
> $foo[? $key1][? $key2]++;
>

$foo[$key1][$key2] = ($foo[$key1][$key2] ?? 0) + 1;

Marco Pivetta

http://twitter.com/Ocramius

http://ocramius.github.com/

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