Yes, but we probably won't share it with you, this is a forum to help user's learn how to write scripts on their own. However if YOU want to write this piece of code, it isn't that difficult.
You need a couple parts:
The upload form
The process page
and the view all the uploads page (or just a directory listing if you don't care)
For the upload form you want to google for something like (upload file html form)
for the process page you want to google for something like (upload file php)
for the view all uploads you could google for something like (php directory search structure)