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Date: Mon, 8 Feb 2016 11:05:05 -0500
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To: Matthew Setter <matthew@maltblue.com>
Cc: internals@lists.php.net
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Subject: Re: [PHP-DEV] Proposal for a new array function
From: kinncj@gmail.com (=?UTF-8?B?S2lubiBKdWxpw6Nv?=)

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On Mon, Feb 8, 2016 at 9:32 AM, Matthew Setter <matthew@maltblue.com> wrote=
:

> I want to propose a new PHP array method, called has_numeric_keys (or
> something similar/better), that would have the following method signature=
:
>
> bool has_numeric_keys(array $array)
>
> The reason for it is to check if the array passed to it only had numeric
> keys.
>
> Why this method, when you could do it in userland PHP? Answer? Convenienc=
e.
> I found, recently, that I had to perform this kind of check, when patchin=
g
> Zend\Db\Sql\Insert.php. The approach I took was this:
>
> return array_keys($arr) !=3D=3D range(0, count($arr) - 1);
>
> Not sure of my approach, I took to Twitter and received the following
> suggestions, amongst others:
>
> function isArrNum($arr) {
>   foreach($arr as $i =3D>$v){
>     if (!is_int($i)) {
>       return false;
>     }
>   }
>   return true;
> }
>
> count(array_filter(array_keys($array), 'is_string')) > 0
>
> array_filter([...], 'is_int', ARRAY_FILTER_USE_KEY)
>
> This convinced me that it wasn't just me seeing a valid use case for it,
> and that others have implemented differing solutions when presented with
> the same situation. Given that, I believe a simple, utility, function suc=
h
> as this would be of help.
>

That's the nice thing about userland... you are giving them ability to
implement what they want!
`array_filter([...], 'is_int', ARRAY_FILTER_USE_KEY)` does the job as the
others... don't think having a new function would prevent this.


>
> As for who would implement it, that would be me.
>
> --
> Kind regards,
>
>
> *Matthew Setter*
> *Freelance Software Developer & Technical Writer *
> *Host of Free the Geek <http://freethegeek.fm> | Author of Zend Framework
> 2
> Foundations <https://leanpub.com/zendframework2-for-beginners>*
>
> w:  http://www.matthewsetter.com
> t:  *@settermjd <https://www.twitter.com/settermjd>*
> g+: *+MatthewSetterFreelanceWriterDeveloper
> <https://plus.google.com/u/0/+MatthewSetterFreelanceWriterDeveloper/posts
> >*
> li: *in/matthewsetter <https://www.linkedin.com/in/matthewsetter>*
>



--=20
*--*
*Kinn Coelho Juli=C3=A3o*
*Toronto - ON/Canada*

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