mutipleQuery mysqli

  mysqli_autocommit($conn, FALSE);

        mysqli_query($conn, "UPDATE withdrawal_request SET STATUS='1',REMARK='$remark' WHERE ID=$id");
        mysqli_query($conn, "UPDATE wallet_transaction SET REMARK='$remark' WHERE SOURCE=$id");



        if (mysqli_commit($conn)) {
            echo 'Accepted';
        } else {
            echo "Error: " . $sql . "<br>" . mysqli_error($conn);
        }
        break;