Another Auto update copyright year

copyrightYear.php

<?php
//copyrightYear
//Automatic Copyright Year Snippet for MODx Revolution
//Use: [[copyrightYear?firstYear=`2015`]]
//Use: Copyright [[AutoCopyYear?firstYear=`2014`]] - Sitename
//Use: Copyright [[AutoCopyYear]] - Sitename
 
$year = date('Y');
$firstYear = isset($firstYear)? $firstYear : $year;
$years = ($year > $firstYear) ? $firstYear.' - '.$year : $year;
echo $years;