use the ftp_* functions to upload a single file to an FTP server.
<?php $conn = ftp_connect ( "ftp.somedomain.com" ); if ($conn) { $session = ftp_login ( $conn, "user", "pass" ); if ($session) { if (ftp_chdir ( $conn, "somedir" )) { ftp_put ( $conn, "remote.txt", "local.txt", FTP_ASCII ); } } ftp_close ( $conn ); } ?>