Please login:

"; $form_data .= "Username:
"; $form_data .= "Password:"; $form_data .= ""; $form_data .= "

"; echo $form_data; } if (isset($_POST['user']) && isset($_POST['password'])) { $user = $_POST['user']; $password = $_POST['password']; if ($user == "admin" && $password == "admin") { $_SESSION['user'] = $_POST['user']; } } if (isset($_SESSION['user'])) { echo "Welcome ".$_SESSION['user'].", you are logged in!"; } else { show_form(); } ?>