$username]); header("Location: index.php"); exit(); } else { recordAdminLoginFailure(); logAccess("Admin login failed", ["username" => $username]); $error = "Benutzername oder Passwort falsch."; } } } } // Redirect if already logged in if (isset($_SESSION['admin_logged_in']) && $_SESSION['admin_logged_in']) { header("Location: index.php"); exit(); } ?>