Re: Declaring vars as INT ?

On Fri, 2005-10-21 at 21:39 +0200, Chris Knipe wrote: > Function DoSomething($Blah) { > $Blah = (int) $Blah; > return $Blah > } > > $Blah, cannot be larger than 2147483647, and sometimes, I get negative > integers back from the above function. > > This is with PHP 4.4.0 on FreeBSD 5.4-STABLE. Can anyone else perhaps > confirm this, and if it is indeed true, is this a bug, or a limitation > somewhere on PHP? Any other ways to confirm that *large* numbers, are > indeed integers? I'm working with numbers in the form of yyyymmddsss > (20051025001 for today for example) It's not a PHP bug. I'm guessing you're on a 32-bit platform. 2147483647 is the maximum length of a signed integer on a 32-bit platform, and PHP doesn't do unsigned integers. A date in the form of yyyymmddsss etc. isn't really a number, so if it was me I'd probably treat it as a string. If you really *have* to treat it as a number, then use float and get all the precision errors that come with floating-point, or use binary coded decimal or another arbitrary precision system. -- Jasper Bryant-Greene General Manager Album Limited e: jasper@album.co.nz w: http://www.album.co.nz/ p: 0800 4 ALBUM (0800 425 286) or +64 21 232 3303 a: PO Box 579, Christchurch 8015, New Zealand