Added date utility class. Similar to the string class but for dates. Contains a method to calculate an age from a date.

classes/Date.php

@@ -0,0 +1,59 @@
+<?php
+
+/**
+ * Date Utility Collection
+ *
+ * PHP version 5
+ *
+ * Licensed under The MIT License
+ * Redistribution of these files must retain the above copyright notice.
+ *
+ * @author    Josh Sherman <josh@gravityblvd.com>
+ * @copyright Copyright 2007-2011, Josh Sherman 
+ * @license   http://www.opensource.org/licenses/mit-license.html
+ * @package   PICKLES
+ * @link      http://p.ickl.es
+ */
+
+/**
+ * Date Class
+ *
+ * Just a simple collection of static functions to accomplish some of the more
+ * redundant date related manipulation.
+ */
+class Date
+{
+	// {{{ Age
+
+	/**
+	 * Age
+	 *
+	 * Calculates age based on the passed date.
+	 *
+	 * @static
+	 * @param  string $date birth / inception date
+	 * @return integer $age number of years old
+	 */
+	public static function age($date) 
+	{
+		if (!preg_match('/\d{4}-\d{2}-\d{2}/', $date))
+		{
+			$date = date('Y-m-d', strtotime($date));
+		}
+
+		list($year, $month, $day) = explode('-', $date, 3);
+
+		$age = date('Y') - $year;
+
+		if (date('md') < $month . $day)
+		{
+			$age--;
+		}
+
+		return $age;
+	}
+
+	// }}}
+}
+
+?>