Welcome [member's name] message?

[HotRodKush]

I know this is a very basic question, so I'll keep it short. I have dynamic announcements on my forum, and I'd like one to say "welcome back [username]!"

What coding do I put in the message to display the logged-in member's name?

Thanks alot!
Aaron

[nico_swd]

echo 'Welcome back, '. $vbulletin->userinfo['username'] .'!';