Hello, I am trying to create a subroutine which will print notifications to my user on a create user page when they try to create a new user. I am having some trouble - and am not sure where to go from here. I started and then lost a couple lines and simply cannot remember what I had to complete the subroutine. I would also like to pop notifications once the page reloads. This is a snippet of my code:

sub notify {
  my ($notifications) = @_;
  $App::session->param('notifications', $notifications);
  return $notifications;
#not sure what to include to complete
#$notifications.= $webnotifications
}

sub pop_notifications {
  print pop($App::notifications);
  reset @App::errs;
#not sure how to complete
}

sub act_login {
  my $username = $App::q->param('username');
  my $password = $App::q->param('Password' );
  my $name = $App::q->param('name');
  my $email = $App::q->param('email');

  my @errs;

  if ($username eq '') {
    push @errs, "missing username";
  }
  if ($password eq '') {
    push @errs, "missing password";
  }
  if ($email eq '') {
    push @errs, "missing email";
  }

  my ($already_exists) = $App::dbh->selectrow_array("SELECT 1 FROM use
+r where username=?", undef, $username);
  if ($already_exists) {
    push @errs, "account already exists";
  }

  if (scalar(@errs) == 0) {
    my $digest = sha1_base64($password);
    $App::dbh->do("INSERT INTO user(username, password_chksum, email, 
+name) VALUES (?, ?, ?, ?)", undef, $username,$digest,$email,$name);
    notify("account created");
    $App::session->param('username', $username);
    App::redirect("myaccount");
  }

  else {
    notify("errors: ".join(', ', @errs));
    App::redirect("createuser");
  }
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