If I read OP's intent correctly, the object is to accept a file upload to a server... but michaeltmccarthy's solution appears to be for the visitor/user to download an extant file from the server.

IMPORTANT: One more observation, in case my interp is correct: OP had best find a way to sandbox the uploads and test their content for nasties. In this day (and most previous days since ARPA-Net was the latest and greatest) allowing users effective free rein to dump garbage onto one's server/host/whatever is waaaay! to dangerous to even consider.