How do I strip spaces?

[goosemoose]

I am working on an awsome chat mod that interfaces with an irc server. It already shows the list of users in  the room and automatically logs the users in. The problem is that usernames can contain spaces in Yabb but not in Irc. How can I take the $user variable and strip out the spaces? Thanks

Goosemoose

[Spaceman-Spiff]

use: $chatname = str_replace(" ","_",$username);
if that doesnt work replace the space with chr(32)