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Date: Tue, 26 Jun 2018 09:58:37 +0200
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Subject: Re: [PHP-DEV] [RFC][Under Discussion] Add functions
 array_key_first()and array_key_last()
From: dev@mabe.berlin (Marc Bennewitz)

Hi all,

I just want to add some information that I feel it's missing in that 
discussion - I'm sorry if it was mentioned already.

1. It's already possible to extract the key and value of any index 
position of an array using array_slice: https://3v4l.org/mib99

2. "array_[key|value]_[first|last]($array)" is in my opinion not a good 
option as it lacks the possibility to extract key/value from any position.
Something like "array_[key|value]_index($array, $index)" where $index 
would be the index position or negative index position from right.


Thanks,
Marc

Am 21.06.2018 um 18:16 schrieb Larry Garfield:
> On Tuesday, June 19, 2018 9:47:01 PM CDT Levi Morrison wrote:
>> I don't think I'm getting all the mail I am supposed to. I hope this gets
>> seen.
>>
>> I propose 2 functions *only* which I believe covers the use-cases that
>> all 4 of these do and more, with shorter names, and the ability to
>> discern whether the call succeeded or not.
>>
>>      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
>>
>> I have tested it with user-land functions and seems to work as
>> intended in all success and failure conditions. Verification that it
>> works as intended with internal functions is necessary but this seems
>> a much better proposal to me.
> 
> Can I vote "heck no" to any function that does multi-return, thus making it
> impossible to chain or pass directly to another function?  That's an idiom
> that just doesn't make sense in PHP.
> 
> --Larry Garfield
>