prepare("UPDATE tasks SET highlighted = ? WHERE id = ?"); $stmt->execute([$highlighted, $id]); echo json_encode(['success' => true]); } elseif ($type === 'subtask') { $stmt = $pdo->prepare("UPDATE subtasks SET highlighted = ? WHERE id = ?"); $stmt->execute([$highlighted, $id]); echo json_encode(['success' => true]); } else { echo json_encode(['success' => false, 'error' => 'Invalid type']); } ?>