Round to nearest 3

[Anon]

Hi, is it possible to round to the nearest 3 ie...

2 = 3
7 = 9
14 = 15
20 = 21

Thanks for any help

[stevena]

Try this, Craig:

function roundTo3($num) {
if($num%3==0) {return $num;}
if(($num+1)%3==0) {return ($num+1);}
else {return $num-1;}
}

Hope that helps!

Happy coding! 🙂