Re: Re: Support negative indexes for arrays and strings

From: Date: Sun, 02 Sep 2012 23:11:06 +0000
Subject: Re: Re: Support negative indexes for arrays and strings
Groups: php.internals 
Request: Send a blank email to internals+get-62698@lists.php.net to get a copy of this message
>I see how this may work for strings and simple vectors, but what about this: > >$a = array(-1 => "foo", -2 => "bar"); echo $a[-1]; > >It should keep returning "foo", right? So then the question is - what >$array[-1] actually means? Context would be the deciding factor, i.e. perhaps restrict the shortcut's applicability to only a positive sequence of numbers for an indexed array's keys, as follows: $a = array(10 => "pen", 11 => "heaven"); echo $a[-1]; // "heaven" >guess if somebody wrote an RFC on that it'd make understanding it >easier. I see that the patch seems to address just the string part - but >the subject also mentions arrays. I think making it clear would be helpful. I'd appreciate if someone possessing RFC "karma" would step forward and put together what should be a relatively simple proposal. And, it may be best to restrict it to just strings, too. You could call it: "RFC: Negative Indexing for Strings" Since Easen has generously provided the patch, writing this proposal should take max 10-20 minutes, if even that much. (And, if there were an RFC template that would make it even easier to do.) SL

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