The answer is:
[insert_php]
if(isset($_GET[‘submit’])){
$result1 = $_GET[‘num1’];
$result2 = $_GET[‘num2’];
$operator = $_GET[‘operator’];
switch($operator){
case None:
echo “Select a method”;
break;
case Add:
echo $result1 + $result2;
break;
case Sub:
echo $result1 – $result2;
break;
case Mult:
echo $result1 * $result2;
break;
case Div:
echo $result1 / $result2;
break;
}
}
[/insert_php]