RE: [PHP] Ticketmaster.com and Word Images

[snip]
Does anyone know how sites like Ticketmaster.com creates the "Word
Image" used for ticket purchase verification?
Do they generate the image on-the-fly from a dictionary, or do the
images pre-exist and they are pulled from a DB along with the word.
[/snip]

The word can be pulled from the DB and the image can be generated using
the GD library.