Newsgroups: php.internals
Path: news.php.net
Xref: news.php.net php.internals:121368
MIME-Version: 1.0
References: <173ca550-71a0-4bd4-96f2-b64b6155115a@app.fastmail.com>
 <CBB83C7D-B10F-410E-B879-F2FA9EDB2F65@sakiot.com> <CAB_ngDi2bEWYxWF+XMmGHXty5hH44=DepdisOQX9hcGLmz0w9A@mail.gmail.com>
In-Reply-To: <CAB_ngDi2bEWYxWF+XMmGHXty5hH44=DepdisOQX9hcGLmz0w9A@mail.gmail.com>
Date: Wed, 18 Oct 2023 00:25:46 -0300
Message-ID: <CADK1yXLJWo7NJdBGVbtGEeDjRfc1f1LbftgdoP3co_D6d8nz5w@mail.gmail.com>
To: Brandon Jackson <brandonja991@gmail.com>
Cc: Saki Takamachi <saki@sakiot.com>, Levi Morrison via internals <internals@lists.php.net>
Content-Type: multipart/alternative; boundary="00000000000019a08c0607f534eb"
Subject: Re: [PHP-DEV] Two new functions array_first() and array_last()
From: deleugyn@gmail.com (Deleu)

--00000000000019a08c0607f534eb
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

On Tue, Oct 17, 2023 at 3:43=E2=80=AFPM Brandon Jackson <brandonja991@gmail=
.com>
wrote:

> > There is also a technique to make the return value `[$key =3D> $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:
> $first =3D array_first($array);
> $value =3D $first[1] ?? throw new Exception();
>
> [,$value] =3D array_first($array) ?? [null, null];
> [,$value] =3D array_first($array) ?? throw new Exception();
>

This function signature can be accomplished by userland once we have
`array_key_first()` and `array_first()`. It's much better to keep
`array_first()` as simple as possible and let everyone build their own
approach to go about it since we have so many approaches.




--=20
Marco Deleu

--00000000000019a08c0607f534eb--