How do i change spaces to _?

[Sean]

I want to do this for some headline thingy. There is some simple way, but I don't know what to start looking for at php.net..

Any help here?

Thanks.

PS: This would happen to a variable.

[Mark Hensler]

PHP Code:

$my_string = str_replace(" ", "_", $my_string); 


PHP Docs: str_replace()

[Sean]

Amazing..All you need to know is the tag, than it's simple!

Thanks.