Most websites include a copyright disclaimer at the bottom of the page. Having a copyright line that is out of date can be a bad reflection on your site. This little PHP script automatically changes the copyright to the current year every year so that it never goes out of date.
$time = time () ;
//This line gets the current time off the server
$year= date("Y",$time) . "<br>";
//This line formats it to display just the year
echo "Copyright 2002 - " . $year;
//this line prints out the copyright date range, you need to edit 2002 to be your opening year
This code could be placed directly on the page, or could be held in a separate file and called with a file include.