Question

Basically, I have a number:

<?
$rating = 72.7777777778;
?>

I basically want to do some maths to create this number as 80.

If the number was 62.7777777778, the number would be 60.

I want the numbers rounded like so:

20, 40, 60, 80, 100

So say I have three numbers:

36.999, 47, 91

I would get:

40, 40, 100

How do I go about doing this? I’ve tried with round, ceil & floor but I haven’t got anywhere.

Would it just be easier doing something like so?

if ($rating < 30){
    $rating = 20;
}elseif (($rating > 30) && ($rating < 50)){
    $rating = 40;
}elseif (($rating > 50) && ($rating < 70)){
    $rating = 60;
}elseif (($rating > 70) && ($rating < 90)){
    $rating = 80;
}else{
    $rating = 100;
}

etc…

Answer 1

$rounded = round(62.222 / 20) * 20;