// if the password fields do not match
// then throw an exception
if (!empty($formdata['password']) && !empty($formdata['password2']) && $formdata['password'] != $formdata['password2']) {
$errors['password'] = "******";
}
if (empty($errors)) {
// since none of the form fields were empty,
// store the form data in variables
$username = $formdata['username'];
$password = $formdata['password'];
$password2 = $formdata['password2'];
// create a UserTable object and use it to retrieve
// the users
$connection = dbconnection::getConnection();
$userTable = new UserTable($connection);
$user = $userTable->getUserByUsername($username);
// since password fields match, see if the username
// has already been registered - if it is then throw
// and exception
if ($user != null) {
$errors['username'] = "******";
}
}
if (!empty($errors)) {
throw new Exception();
}
// since the username is not aleady registered, create
// a new User object, add it to the database using the
// UserTable object, and store it in the session array
$user = new User(null, $username, $password, "user");
$id = $userTable->insert($user);