Re: Re: Negative string offset support

I honestly don't really care about the performance side of things, I'd be very surprised if this sort of calculation is going to be in the top 5 bottlenecks of an application. However, from a development point of view I do find $a{-1} a much shorter and cleaner way of calculating an end-of-string offset and would like to see it implemented. On Mon, 2004-11-01 at 09:44, Ilia Alshanetsky wrote: > IMO {-1} syntax is not only faster but simpler to use then the > equivalent substr() (for read) or $a[strlen($a) - 1] (for write). While > my reasons are primarily performance based, I think that most people > would find the {-1} simpler to use as well. > > Ilia > > Sterling Hughes wrote: > > i hope not. this should be about what's cool for developers, the > > speed increase is not a compelling reason.. the debate is "does this > > make code easier to read/write/maintain?" I think it doesn't, and > > therefore am against it. > > > > -sterling > > > > > > On Mon, 1 Nov 2004 03:04:45 +0100, Marcus Boerger <helly@php.net> wrote: > > > >>Hello Wez, > >> > >> well it would. However 5.1 aims to be a major speed improvement and that's > >>what the idea is about. > >> > >>best regards > >>marcus > >> > >> > >> > >>Monday, November 1, 2004, 2:29:46 AM, you wrote: > >> > >> > >>>Doesn't substr($a, -1) work ? > >> > >>>--Wez. > >> > >>>On Sun, 31 Oct 2004 17:45:03 -0500, Greg Beaver <cellog@php.net> wrote: > >>> > >>>>It would reduce the errors I inevitably get > >>>>whenever using a complex feature like substr(). The three choices: > >>>> > >>>>1) substr($a, strlen($a) - 1); > >>>>2) $a{strlen($a) - 1} > >>>>3) $a{-1} > >>>> > >>>>It's pretty obvious that the 3rd choice lowers the potential for all > >>>>kinds of bugs (mistypign, wrong parameter name, incorrect parameter > >>>>placement), and is much more readable. For those who already know how > >>>>{} works in PHP, it's also obvious what it does at the first look > >>>>without any speculation. > >> > >>-- > >>Best regards, > >> Marcus mailto:helly@php.net > >> > >>-- > >>PHP Internals - PHP Runtime Development Mailing List > >>To unsubscribe, visit: http://www.php.net/unsub.php > >> > >> > > > >