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Subject: Re: [PHP-DEV] Support negative indexes for arrays and strings
From: marc@easen.co.uk (Marc Easen)

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I have submitted a patch to support negative indexs in strings, as per 
the conversation adding them to arrays could possibly detract from the 
syntactical sugar they are indented to be.

In summary:

An alternative to:
$var = 'abc';
echo $var[strlen($var) - 1];

Can be:
$var = 'abc';
echo $var[-1];

Commit:
https://github.com/Easen/php-src/commit/7016e52677f525139491467f3e76862b9a597b76

Pull request:
https://github.com/php/php-src/pull/100

Thanks,


On 14/01/11 18:47, Stas Malyshev wrote:
> Hi!
>
>> I would like to open the discussion around the support of negative
>> indexes, as I feel a lot of developers will benefit from this
>> syntactical sugar.
>
> What you are looking for is implemented in array_slice(). Python has
> shortcuts for this thing, like a[1:-1], but PHP doesn't. If you wanted
> to RFC something here, I think the idea of $a[X:Y] with array_slice 
> semantics could be doable. $a[-1:1] would be your case then.


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