Re: Support negative indexes for arrays and strings

On 11/06/12 20:13, Stas Malyshev wrote:

Hi!

Can be: $var = 'abc'; echo $var[-1];

This seems simple enough for a hard-coded -1, but... Would $var[-2] be strlen($var) - 2 and so on?

The main question is what happens with "foo"[-4] or ['x'][-2].

And then one would expect some rather complex logic to compute -N for $var[-N]

I don't see much of complex logic here, but $a[2] = 'a' would create a new array element if it does not exist, while $a[-2] can't. Not a big issue, but somewhat inconsistent I guess.

Please note I'm not referring the negative indexes in arrays, just strings. As I see strings as being simpler to implement and produce a greater benefit compared to supporting negative indexes for arrays. As arrays are more complex structures and adding this behaviour would complicate things somewhat.