fclose($myfile);

 $conn->close();

//Move file to ftp-server
$ftp_server = "ftp.domain.com";
$ftp_username = "username";
$ftp_userpass = "password";
$ftp_conn = ftp_connect($ftp_server) or die("Could not connect to $ftp_server");
$login = ftp_login($ftp_conn, $ftp_username, $ftp_userpass);
$remote_location = "/public_html/testdir";
$file = "export.csv";

// upload file
if (ftp_put($ftp_conn, $remote_location, $file, FTP_ASCII))
  {
  echo "Successfully uploaded $file.";
  }
else
  {
  echo "Error uploading $file.";
  }

// close connection
ftp_close($ftp_conn);