How to add ticket number to message thankyou.inc.php

When a customer opens a new ticket a thank you message appears in the page generated by /support/open.php

The message actually resides in the file

support/include/client/thankyou.inc.php

As standard, the message does not mention the ticket number so the customer has to rely on the email to receive it.

What must I add to "thankyou.inc.php" in order to display the ticket number?

Thanks in advance.

Ticket Number in thankyou.inc.php

Open thankyou.inc.php

find:

An email with the ticket number has been sent to <?=$ticket->getEmail()?>.

after this line write this code

Ticket number: #<?=$ticket->getExtId()?>

and that it finish edition

It's not a good idea! See http://osticket.com/forums/showthread.php?t=2464(http://osticket.com/forums/showthread.php?t=2464)