diff --git a/samples/website_integration/AuthMeController.php b/samples/website_integration/AuthMeController.php
index f67cf060..8838bf1d 100644
--- a/samples/website_integration/AuthMeController.php
+++ b/samples/website_integration/AuthMeController.php
@@ -54,16 +54,18 @@ abstract class AuthMeController {
      *
      * @param string $username the username to register
      * @param string $password the password to associate to the user
+     * @param string $email the email (may be empty)
      * @return bool whether or not the registration was successful
      */
-    function register($username, $password) {
+    function register($username, $password, $email) {
+        $email = $email ? $email : 'your@email.com';
         $mysqli = $this->getAuthmeMySqli();
         if ($mysqli !== null) {
             $hash = $this->hash($password);
-            $stmt = $mysqli->prepare('INSERT INTO ' . self::AUTHME_TABLE . ' (username, realname, password, ip) '
-                . 'VALUES (?, ?, ?, ?)');
+            $stmt = $mysqli->prepare('INSERT INTO ' . self::AUTHME_TABLE . ' (username, realname, password, email, ip) '
+                . 'VALUES (?, ?, ?, ?, ?)');
             $username_low = strtolower($username);
-            $stmt->bind_param('ssss', $username, $username_low, $hash, $_SERVER['REMOTE_ADDR']);
+            $stmt->bind_param('sssss', $username, $username_low, $hash, $email, $_SERVER['REMOTE_ADDR']);
             return $stmt->execute();
         }
         return false;
diff --git a/samples/website_integration/index.php b/samples/website_integration/index.php
index 0c2a1a1c..c20cbe41 100644
--- a/samples/website_integration/index.php
+++ b/samples/website_integration/index.php
@@ -22,13 +22,14 @@ $authme_controller = new Sha256();
 $action = get_from_post_or_empty('action');
 $user = get_from_post_or_empty('username');
 $pass = get_from_post_or_empty('password');
+$email = get_from_post_or_empty('email');
 
 $was_successful = false;
 if ($action && $user && $pass) {
     if ($action === 'Log in') {
         $was_successful = process_login($user, $pass, $authme_controller);
     } else if ($action === 'Register') {
-        $was_successful = process_register($user, $pass, $authme_controller);
+        $was_successful = process_register($user, $pass, $email, $authme_controller);
     }
 }
 
@@ -39,6 +40,7 @@ into the following form to test it.
 <form method="post">
  <table>
    <tr><td>Name</td><td><input type="text" value="' . htmlspecialchars($user) . '" name="username" /></td></tr>
+   <tr><td>Email</td><td><input type="text" value="' . htmlspecialchars($email) . '" name="email" /></td></tr>
    <tr><td>Pass</td><td><input type="password" value="' . htmlspecialchars($pass) . '" name="password" /></td></tr>
    <tr>
      <td><input type="submit" name="action" value="Log in" /></td>
@@ -69,12 +71,14 @@ function process_login($user, $pass, AuthMeController $controller) {
 }
 
 // Register logic
-function process_register($user, $pass, AuthMeController $controller) {
+function process_register($user, $pass, $email, AuthMeController $controller) {
     if ($controller->isUserRegistered($user)) {
         echo '<h1>Error</h1> This user already exists.';
+    } else if (!is_email_valid($email)) {
+        echo '<h1>Error</h1> The supplied email is invalid.';
     } else {
         // Note that we don't validate the password or username at all in this demo...
-        $register_success = $controller->register($user, $pass);
+        $register_success = $controller->register($user, $pass, $email);
         if ($register_success) {
             printf('<h1>Welcome, %s!</h1>Thanks for registering', htmlspecialchars($user));
             echo '<br /><a href="index.php">Back to form</a>';
@@ -86,6 +90,12 @@ function process_register($user, $pass, AuthMeController $controller) {
     return false;
 }
 
+function is_email_valid($email) {
+    return trim($email) === ''
+        ? true // accept no email
+        : filter_var($email, FILTER_VALIDATE_EMAIL);
+}
+
 ?>
 
  </body>