Re: Negative string offset support
| From: | Alan Knowles | Date: | Sat, 30 Oct 2004 00:50:27 +0000 |
| Subject: | Re: Negative string offset support | ||
| References: | 1 | Groups: | php.internals |
| Request: | Send a blank email to internals+get-13621@lists.php.net to get a copy of this message | ||
echo $a{strlen($a)-1}; ? is that really that bad.
I do worry that at present
$a = "a string";
$p = 0
while( $p < strlen($p) )
.. do stuff that could do $p-- or $p++ ....
echo $a{$p};
}
at present that would produce a nice error if you went < 0.. easy to spot.. - if -ve was supported it could do unexpected stuff..
Regards
Alan
Ilia Alshanetsky wrote:
I am wondering what are people's opinions on adding support for negative string offsets that could be used to access data from the end of a string. Ex. $a = "123"; echo $a[-1]; // would print 3 I don't think we should do this for arrays, since -1 and similar are valid array keys, which means adding this support for arrays would break BC. Ilia