connect_error) { die("Connessione fallita: " . $conn->connect_error); } if (isset($_POST['idbookingclass'])) { $idbookingclass = $_POST['idbookingclass']; $query = "UPDATE bookingclass SET lostlesson = 'N' WHERE idbookingclass = ?"; $stmt = $conn->prepare($query); $stmt->bind_param("i", $idbookingclass); if ($stmt->execute()) { echo json_encode(['success' => true]); } else { echo json_encode(['success' => false, 'error' => $conn->error]); } $stmt->close(); } $conn->close();