checking if a number is divisible by 6 PHP

Question

I want to check if a number is divisible by 6 and if not I need to increase it until it becomes divisible.

how can I do that ?

Answer 1

if ($number % 6 != 0) {   $number += 6 - ($number % 6); } 

The modulus operator gives the remainder of the division, so $number % 6 is the amount left over when dividing by 6. This will be faster than doing a loop and continually rechecking.

If decreasing is acceptable then this is even faster:

$number -= $number % 6; 

Answer 2

if ($variable % 6 == 0) {     echo 'This number is divisible by 6.'; }: 

Make divisible by 6:

$variable += (6 - ($variable % 6)) % 6; // faster than while for large divisors