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To: Levi Morrison <levim@php.net>
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Date: Wed, 20 Jun 2018 11:17:39 +0200
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Subject: Re: [PHP-DEV] [RFC][Under Discussion] Add functions
 array_key_first()and array_key_last()
From: enno.woortmann@web.de ("Woortmann, Enno")

Hi Levi,


Am 20.06.2018 um 04:47 schrieb Levi Morrison:
>      list($key, $value) = array_first($input);
>      // $key will be null if the call failed
>
>      list($key, $value) = array_last($input);
>      // $key will be null if the call failed

Your proposed functions would be implementable with the internal 
functions but I think this approach doesn't provide a clean function 
interface as it forces the user to evaluate the wanted value from the 
returned array structure by using either the list() construct or 
something like $key = array_first($input)[0];

I believe two functions with this interface will be confusing and less 
intuitive for the developer.
If I use a function I expect it to give me a return value which I can 
use without any further post processing $wantedValue = 
fancyFunction($someInput);

Enno