03.Multiply/DivideNumbers

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>First Steps Into PHP</title>

</head>
<body>
<form>
    N: <input type="text" name="num1" />
    M: <input type="text" name="num2" />
    <input type="submit" />
</form>
<?php
    if (isset($_GET['num1']) && isset($_GET['num2'])) {
        $n = intval($_GET['num1']);
        $m = intval($_GET['num2']);
        if ($m >= $n) {
            echo $n * $m;
        }
        else {
            echo $n / $m;
        }
    }
?>
</body>
</html>