Re: [RFC] [Discussion] array_first() and array_last()

From: Date: Mon, 07 Apr 2025 19:31:23 +0000
Subject: Re: [RFC] [Discussion] array_first() and array_last()
References: 1 2  Groups: php.internals 
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On 06/04/2025 19:06, Juris Evertovskis wrote: > On 2025-04-05 18:51, Niels Dossche wrote: > Do you think it would be hard or wrong to add array_nth? > I've had more trouble with that as the in-place implementation is usually pretty unreadable, > e.g. > >     array_slice(array_values($array), $offset, 1)[0] ?? null > > I understand this need is less common, especially compared to > array_first. But I also suspect that an in-engine implementation > might have more performance gains compared to an userland one. > This is not hard to add. For packed arrays this can be done in O(1) time, for non-packed arrays in O(n) worst case. If added, it's best to add the pair array_nth() & array_nth_key() together IMO. However, it's not something I ever really needed nor something that I have seen a demand for. I think this could be left for the future for follow-up work. Kind regards Niels

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