Posted by d on 09/28/17 11:41

"Bonge Boo!" <bingbong@spamcop.net> wrote in message
news:C02E1407.17240%bingbong@spamcop.net...
> This is driving me slightly nuts. I want to do some very simple
> arithmetic,
> but always make sure I return a positive number, even if the result of the
> calculation is a negative.
>
> Basically convert -4 to 4, etc.
>
> So I've been trawling the manual for functions and Googling, and can't
> find
> a thing. Lots of stuff about formatting string with sprintf, and stuff
> about
> converting float to ints, but nothing as obvious as this.
>
> Suggestions gratefully received.

Even if the abs() function didn't exist, which it does, this is a very
simple problem to solve:

function new_abs($s) {
if ($s<0) $s*=-1;
return $s;
}

dave :)

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