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<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>Answer</title>
</head>
<body>

<?php
$result = "";
class calculator
{
    var $a;
    var $b;


    function getResult($a, $b){

        if($a > $b){
            return "$a is greater than $b";
        }
        elseif($a == $b || $b == $a){
            return "$a is equal to $b";
        }
        else {
            return "$b is greater than $a";
        }

    }


}

$cal = new calculator();
if(isset($_POST['submit']))
{
    $result = $cal->getResult($_POST['n1'],$_POST['n2']);
}
?>

<form method="post">
<table align="center">
    <tr>
        <td><strong><?php echo $result; ?><strong></td>
    </tr>
    <tr>
        <td>Number1</td>
        <td>
         <input type="number" min="0" max="9" value="0" name="n1"></td>
    </tr>

    <tr>
        <td>Number2</td>
        <td><input type="number" min="0" max="9" value="0" name="n2"></td>
    </tr>

    <tr>
        <td></td>
        <td><input type="submit" name="submit" value="                =                "></td>
    </tr>

</table>
</form>


</body>
</html>