How to act on many files (i.e. *)

I can't find a way in PHP to behave on multiple files, without knowing the script somehow knowing the filenames already. In particular, I want to delete all files in a directory. unlink("*") doesn't seem to work with wildcards (at least not on my test Windows environment). I can't find any function that gets me a list of filenames, either. Am I missing something, or do I have to shell out to do this? - Ken kenzo@free-music.com