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Date: Fri, 7 Feb 2014 15:36:34 +0900
Message-ID: <CAGa2bXbk93HE0468XMXAaE1=JLov0PDwmf5G+3v1Bx5Ltyd_vA@mail.gmail.com>
To: Tjerk Meesters <tjerk.meesters@gmail.com>
Cc: Chris Wright <daverandom@php.net>, 
	"Kingsquare.nl - Robin Speekenbrink" <robin@kingsquare.nl>, PHP Internals <internals@lists.php.net>
Content-Type: multipart/alternative; boundary=089e01228148764fd904f1cb38a5
Subject: Re: [PHP-DEV] [discussion] add array_usearch()
From: yohgaki@ohgaki.net (Yasuo Ohgaki)

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Hi all,

On Fri, Feb 7, 2014 at 9:26 AM, Tjerk Meesters <tjerk.meesters@gmail.com>wrote:

> I'm not wildly enthusiastic about another magic flags parameter, but it's
> an acceptable compromise for me. The slight advantage there is that
> `in_array()` would be bestowed upon the ability to take a callback function
> as well. Something like:
>
> if (in_array('is_numeric', $array, SEARCH_NEEDLE_IS_CALLBACK)) { ... }
>

What we need is 'closure only callback'.
If we have it, then we don't have to worry about string callback functions.

if (in_array(function($elem) {return is_numeric(strstr($elem));}, $array))
{ ... }

Why don't we have 'closure' as signature? It can do more than calling
a function.

bool in_array(closure $callback, array $ary);

Cons would be we cannot search closures in $ary.
Is there any use of searching closure?

Regards,

--
Yasuo Ohgaki
yohgaki@ohgaki.net

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