trouble with file_mime_type() in upload.php

Perhaps I need to try some other way? I really don't want to hack up upload.php, that would be unmaintainable. Perhaps I could turn off the mimes checking?

How can I debug @finfo_file? Where can I find that code? Is that a built in php function?  How about the character part? Do you know what that is? How about the "magic file"? What is that? Or is that the mimes.php we have talked about?

proof that an old dog can learn new tricks