<!DOCTYPE html>
<html>
<body>
<?php
$num1 = 45;
$num2 = 90;
$gcd = 1;
for($i=2; $i<=$num1 && $i<=$num2; $i++)
{
// Checks if i is factor of both integers
if(($num1 % $i == 0) && ($num2 % $i == 0))
$gcd = $i;
}
echo "GCD of $num1 and $num2: $gcd <br>";
?>
</body>
</html>