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Date: Wed, 22 Aug 2012 07:53:13 +0900
Message-ID: <CAGa2bXb8+t9Z1e3XFvuS6h80V0bRHCvhAenpuz=BKya+izT1DQ@mail.gmail.com>
To: Peter Cowburn <petercowburn@gmail.com>
Cc: Levi Morrison <morrison.levi@gmail.com>, Andrew Faulds <ajf@ajf.me>, 
	Tjerk Anne Meesters <datibbaw@php.net>, Rasmus Schultz <rasmus@mindplay.dk>, internals@lists.php.net
Content-Type: text/plain; charset=ISO-8859-1
Subject: Re: [PHP-DEV] re: removing an item from an array
From: yohgaki@ohgaki.net (Yasuo Ohgaki)

Hi,

2012/8/22 Peter Cowburn <petercowburn@gmail.com>:
> On 21 August 2012 23:26, Yasuo Ohgaki <yohgaki@ohgaki.net> wrote:
>> array_walk is the best(fast and memory efficient) way
>> to delete elements.
>
> If array_walk() is the best (fast and memory efficient) way to delete
> elements, why have we had the following line in the manual, for the
> array_walk() callback, for over a decade [1]? (The exact phrasing has
> changed slightly one time, but the message has remained the same)
> "Only the values of the array may potentially be changed; its
> structure cannot be altered, i.e., the programmer cannot add, unset or
> reorder elements."
>
> [1] http://svn.php.net/viewvc/?view=revision&revision=75124

10 years ago log :)
I'm not sure, but it had some problems with reference back then.
There were many array functions that behaved wrong with reference
used to be.

I was annoyed by that, probably. That's why I wrote it, I suppose.

Good catch.
It should be removed now.

Regards,

--
Yasuo Ohgaki
yohgaki@ohgaki.net