Find a number whether it is a multiple of another number - PHP

This function is used to find a number whether the number is multiple of another number or not

<?php
function is_multiple($num, $mult){
if($num % $mult == 0)
return true;
else
return false;
}

var_dump(is_multiple(200, 100));
var_dump(is_multiple(110, 100));
var_dump(is_multiple(1000, 100));
?>