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Date: Sat, 6 Oct 2007 20:09:38 +0200
Reply-To: Marcus Boerger <helly@php.net>
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To: Larry Garfield <larry@garfieldtech.com>
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Subject: Re: [PHP-DEV] substr/array_slice in []
From: helly@php.net (Marcus Boerger)

Hello Larry,

  ArrayAccess is not designed to work in any array functions and we
explicitly decided against going that route. We wanted ArrayAccess to
support the array syntax, so [x,y] should be supported if we want that.
However I agree that this kind of slicing is a bit too perlish or
pythonish.

marcus

Friday, October 5, 2007, 3:05:30 AM, you wrote:

> On Tuesday 02 October 2007, Alexey Zakhlestin wrote:
>> On 10/1/07, Martin Alterisio <malterisio777@gmail.com> wrote:
>> > Sorry to bother, I have a few questions on this matter.
>> > How will this impact on the SPL ArrayAccess and related interfaces and
>> > objects?
>> > Will there be an interface to this functionality?
>> > If so, how will ranges be passed through to this interface?
>> > Will this be consistent with substr() and array_slice() if used with an
>> > ArrayAccess implementation?
>>
>> I guess it can be made to work with current ArrayAccess, but result
>> will be quite slow. (it will need to query requested elements
>> one-by-one and recombine those in array)
>>
>> But adding another interface can solve the problem. Ranges can be
>> passed exactly the way they are passed to [] operator
>>
>> public function rangeGet($start, $length);
>> public function rangeSet($start, $length, array $data);

> Here's the question I see.  Right now, does an ArrayAccess object work with 
> array_slice()?  If so, then [2, 5] syntax would be just some nice syntactic 
> sugar.  If not, then it becomes a powerful new feature, and implementing it 
> on normal arrays and strings becomes just a matter of consistent syntax.

> Personaly I kinda like it, but I know I'm not the one coding it.  

> -- 
> Larry Garfield                  AIM: LOLG42
> larry@garfieldtech.com          ICQ: 6817012

> "If nature has made any one thing less susceptible than all others of 
> exclusive property, it is the action of the thinking power called an idea, 
> which an individual may exclusively possess as long as he keeps it to 
> himself; but the moment it is divulged, it forces itself into the possession
> of every one, and the receiver cannot dispossess himself of it."  -- Thomas 
> Jefferson




Best regards,
 Marcus