Wrong Parament count

["Tonya" <php@asksummer.com>]

MYSQL and PHP 4.3.3

*sigh* I hate eregs and I'm really bad with them :/

I have a form that has a field in which the user is supposed to enter an IRC channel name.  IRC channel names begin with a '#'.  

ereg("^#")  does not work.  I am getting the error "Warning: Wrong parameter count for ereg()" 

Can someone give me a working ereg for this??  :)

Thanks!