Dynamic Copyright message in Drupal footer

If you want a dynamic footer in Drupal footer you can use thsi script.

The first year the messages sais:
Copyright© 2014PBC-techniek

All following years like:
Copyright© 2014-2015 PBC-techniek

The years are automaticly added


<?php
$FROM=2014;
$NOW = date('Y');
if ( $NOW == $FROM ) {
$DATESTRING = $NOW;
} else {