function addnumbers($first,$second)
{
   $answer = $first+$second;
   return $answer
}


// LATER ON
$number1 = $_GET['number1'];
$number2 = $_GET['number2'];

$result = addnumbers($number1,$number2);
print $result;
// THIS WOULD PRINT 12 if in the forms the first number was 3 and second was 9.