Posted by Brent Baisley on 04/28/05 23:38

I think the formula you are looking for is something like this:

round( y/x, 0) * x

With y being your number and x being the nearest increment number to
round to.


On Apr 28, 2005, at 4:10 PM, Chris Boget wrote:

> I realize this is a dumb question but I just can't come
> up with an equation that will do this and I don't see an
> internal PHP function (for version 4.3) that will do this...
> Basically I need to come up with an equation/algorithm
> that will round any number up/down to the nearest X.
> I tried using
>
> y +/- (y mod x)
>
> but after I started putting in some test numbers, it didn't
> always work. For example,
>
> 37678 + ( 37678 % 500 )
>
> did not round up to the nearest 500.
>
> Any ideas?
>
> thnx,
> Chris
>
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Brent Baisley
Systems Architect
Landover Associates, Inc.
Search & Advisory Services for Advanced Technology Environments
p: 212.759.6400/800.759.0577

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