Removing special characters from a string

[Anon]

Hello

I want to keep only the alphanumeric characters from
a given string, what's the best / fastest way to do that?

(For example "@#test123/()" should become "test123")

str_replace only replace a pattern as far as I know..

Thanks a lot.

[Anon]

you can do it with ereg_replace. go here:
http://www.php.net/manual/function.ereg-replace.php
and check the user added notes...