How to get rid of certain character from a string

[eluser]cinewbie81[/eluser]
For eg:

I have a string like : "*this is *my stri*ng"

how can i get rid of the asterik symbol from my string anyone ?

[eluser]cinewbie81[/eluser]
IGNORED this post ... found the solution .. sorry all ..

[eluser]Derek Allard[/eluser]
post your solution for others. Did you use str_replace? Did you use word_censor()?