$year = date("Y", strtotime($yourDateVar));

用M打印当前月份，用D打印日期，用Y打印年份。

<?php echo date("M D Y"); ?>

顺便说一句……网站版权展示有几种合适的方式。有些人倾向于让事情变得多余，例如:版权©具有相同的含义。重要的版权部分包括:

**Symbol, Year, Author/Owner and Rights statement.** 

使用PHP + HTML:

<p id='copyright'>&copy; <?php echo date("Y"); ?> Company Name All Rights Reserved</p>

or

<p id='copyright'>&copy; <?php echo "2010-".date("Y"); ?> Company Name All Rights Reserved</p

$year = date("Y", strtotime($yourDateVar));

只写:

date("Y") // A full numeric representation of a year, 4 digits
          // Examples: 1999 or 2003

Or:

date("y"); // A two digit representation of a year     Examples: 99 or 03

然后“echo”这个值…

http://us2.php.net/date

echo date('Y');