= 0) { // Update saldo di database $update_query = "UPDATE users SET bank = ? WHERE id = ?"; $update_stmt = mysqli_prepare($conn, $update_query); mysqli_stmt_bind_param($update_stmt, "ii", $new_balance, $_SESSION['user_id']); if (mysqli_stmt_execute($update_stmt)) { $_SESSION['balance'] = $new_balance; $_SESSION['bank'] = $new_balance; header('Content-Type: application/json'); echo json_encode(['status' => 'success', 'balance' => $_SESSION['balance']]); exit; } else { header('Content-Type: application/json'); echo json_encode(['status' => 'error', 'message' => 'Failed to update balance']); exit; } } } ?>