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Date: Wed, 18 Oct 2023 17:28:42 +0200
Message-ID: <CAG9XoMTKDCa2d683mkXMC3XNK866-AsMzemxPdmRQU36NjsfaA@mail.gmail.com>
To: Robert Landers <landers.robert@gmail.com>
Cc: Deleu <deleugyn@gmail.com>, Brandon Jackson <brandonja991@gmail.com>,
Saki Takamachi <saki@sakiot.com>, Levi Morrison via internals <internals@lists.php.net>
Content-Type: multipart/alternative; boundary="000000000000050cf60607ff4c10"
Subject: Re: [PHP-DEV] Two new functions array_first() and array_last()
From: benjamin.morel@gmail.com (Benjamin Morel)
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Content-Type: text/plain; charset="UTF-8"
On Wed, 18 Oct 2023 at 17:05, Robert Landers <landers.robert@gmail.com>
wrote:
>
> This is simply not true, 0 is not always the first key in a list,
> especially after filtering it. Hence there is a need for this function
> in the first place.
Just to clarify this point: If 0 is not the first key, then it's not a list.
After filtering a list, you get an array that may or may not be a list:
https://3v4l.org/VegUr
Regardless, to add my 2 cents, I'd keep things simple and vote for this
signature:
array_first(array $array): mixed
array_last(array $array): mixed
returning the first/last element, or `null` if the array is empty.
Or, alternatively:
array_first(array $array, mixed $default = null): mixed
array_last(array $array, mixed $default = null): mixed
returning `$default` if the array is empty.
Both look fine to me.
- Benjamin
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