Rounding to nearest fraction (half, quarter, etc.)

Question

So, I need to create the following functions but my head can\'t think of any possibility in PHP without complicated math.

• Round always up to t

Answer 1

According to the mround() function in Excel:

function MRound($num,$parts) {
    $res = $num * $parts;
    $res = round($res);
    return $res /$parts;
}
echo MRound(-1.38,4);//gives -1.5
echo MRound(-1.37,4);//gives -1.25
echo MRound(1.38,4);//gives 1.5
echo MRound(1.37,4);//gives 1.25