hasil.php

<!DOCTYPE html>
<html>
<head>

    <?php include "index.php" ?>
    <title>Program Enkripsi dan Dekripsi</title>
    <link rel="stylesheet" type="text/css" href="css/bootstrap.css">
    <script type="text/javascript" src="js/jquery.js"></script>
    <script type="text/javascript" src="js/bootstrap.js"></script>
    <link href="css.css" rel="stylesheet" type="text/css" >
</head>
<body>
<div class="first">
    <h2>Hasil <i>Encryp/ Decrypt</i></h2>
    <form class="form-group">
        <div class="form-group">
        <input type="text" class="form-control" disabled>
        </div>
</div>

<?php

    $data = $_POST[data]

    $encode = base64_encode($data);
    $decode = base64_decode($data);

    echo "<br/>Hasil encode :".$encode;
    echo "<br/>Hasil Decode :".$decode;
?>
</body>
</html>