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Date: Mon, 11 Jun 2012 14:28:21 -0500
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Subject: Re: [PHP-DEV] Support negative indexes for arrays and strings
From: ceo@l-i-e.com ("Richard Lynch")

On Mon, June 11, 2012 2:13 pm, Stas Malyshev wrote:
>> 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.

$n = some_incredibly_long_and_complex_computation();
//and, for real fun, sometimes it returns positive, and sometimes
negative.

$s = $var[$n];

//a few hundred lines later, buried somewhere else

if ($n < 0){
//whatever
}
else{
//something entirely different
}

Sooner or later, somebody will do that, and I really don't want to
have to un-tangle all that mess to figure out if $n is positive or
negative for the sake of saving a few keystrokes...

-- 
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