Re: round a number down to an odd number
| From: | Steve Werby | Date: | Sun, 10 Dec 2000 19:52:57 +0000 |
| Subject: | Re: round a number down to an odd number | ||
| References: | 1 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-29577@lists.php.net to get a copy of this message | ||
"Tom Beidler" <tbeidler@mindspring.com> wrote:
> I have a page where I'm trying to swap out images to represent a product.
> There's one image for every 2 products id's. Is there a way in PHP to
return
> an odd number? That way I can name the images after the odd part numbers,
if
> someone orders the small size which would have the even part number, I
could
> have the formula knock off a number, and use the odd part number image. If
> they would order the large the formula wouldn't knock off a number.
Use the modulus operator "%" which returns a remainder.
if( $num % 2 == 0 ) // $num is an even number
{
$num = $num - 1;
}
--
Steve Werby
COO
24-7 Computer Services, LLC
Tel: 804.817.2470
http://www.247computing.com/