Integer to Roman numeral
Changes and integer to a roman numeral.
private function numberToRoman($num)
{
$n = intval($num);
$result = ”;
$lookup = array(’M’ => 1000, ‘CM’ => 900, ‘D’ => 500, ‘CD’ => 400,
‘C’ => 100, ‘XC’ => 90, ‘L’ => 50, [...]