Re: Negative string offset support

From: Date: Sat, 30 Oct 2004 00:50:27 +0000
Subject: Re: Negative string offset support
References: 1  Groups: php.internals 
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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


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