Newsgroups: php.internals
Path: news.php.net
Xref: news.php.net php.internals:121361
MIME-Version: 1.0
References: <173ca550-71a0-4bd4-96f2-b64b6155115a@app.fastmail.com> <CBB83C7D-B10F-410E-B879-F2FA9EDB2F65@sakiot.com>
In-Reply-To: <CBB83C7D-B10F-410E-B879-F2FA9EDB2F65@sakiot.com>
Date: Tue, 17 Oct 2023 13:42:59 -0500
Message-ID: <CAB_ngDi2bEWYxWF+XMmGHXty5hH44=DepdisOQX9hcGLmz0w9A@mail.gmail.com>
To: Saki Takamachi <saki@sakiot.com>
Cc: Levi Morrison via internals <internals@lists.php.net>
Content-Type: text/plain; charset="UTF-8"
Subject: Re: [PHP-DEV] Two new functions array_first() and array_last()
From: brandonja991@gmail.com (Brandon Jackson)

> There is also a technique to make the return value `[$key => $value]` instead of just a value, but this loses simplicity.

Hmm, since the naming array_first and array_last doesn't clarify that
it's returning a key or a value. What if it returned both as ?[key,
value].

That opens quite a few use possibilities:
$first = array_first($array);
$value = $first[1] ?? throw new Exception();

[,$value] = array_first($array) ?? [null, null];
[,$value] = array_first($array) ?? throw new Exception();