This class provides an advanced file uploader system for file uploads made
from html forms. Features:
 * Can handle from one file to multiple files.
 * Safe file copying from tmp dir.
 * Easy detecting mechanism of valid upload, missing upload or error.
 * Gives extensive information about the uploaded file.
 * Rename uploaded files in different ways: as it is, safe or unique.
 * Validate allowed file extensions.
 * Multiple languages error messages support (es, en, de, fr, nl).

WWW: http://pear.php.net/package/HTTP_Upload/