Added date helper and created date::fuzzy_span() method

system/classes/date.php

@@ -0,0 +1,109 @@
+<?php defined('SYSPATH') or die('No direct script access.');
+/**
+ * Date helper.
+ *
+ * @package    Kohana
+ * @author     Kohana Team
+ * @copyright  (c) 2007-2009 Kohana Team
+ * @license    http://kohanaphp.com/license.html
+ */
+class date_Core {
+
+	// Second amounts for various time increments
+	const YEAR   = 31556926;
+	const MONTH  = 2629744;
+	const WEEK   = 604800;
+	const DAY    = 86400;
+	const HOUR   = 3600;
+	const MINUTE = 60;
+
+	/**
+	 * Returns the difference between two times in a "fuzzy" way.
+	 *
+	 * @param   integer  past UNIX timestamp
+	 * @return  string
+	 */
+	public static function fuzzy_span($timestamp)
+	{
+		// Determine the difference in seconds
+		$offset = time() - $timestamp;
+
+		if ($offset <= date::MINUTE)
+		{
+			return 'moments ago';
+		}
+		elseif ($offset < (date::MINUTE * 20))
+		{
+			return 'a few minutes ago';
+		}
+		elseif ($offset < date::HOUR)
+		{
+			return 'less than an hour ago';
+		}
+		elseif ($offset < (date::HOUR * 4))
+		{
+			return 'a couple of hours ago';
+		}
+		elseif ($offset < date::DAY)
+		{
+			return 'less than a day ago';
+		}
+		elseif ($offset < (date::DAY * 2))
+		{
+			return 'about a day ago';
+		}
+		elseif ($offset < (date::DAY * 4))
+		{
+			return 'a couple of days ago';
+		}
+		elseif ($offset < date::WEEK)
+		{
+			return 'less than a week ago';
+		}
+		elseif ($offset < (date::WEEK * 2))
+		{
+			return 'about a week ago';
+		}
+		elseif ($offset < date::MONTH)
+		{
+			return 'less than a month ago';
+		}
+		elseif ($offset < (date::MONTH * 2))
+		{
+			return 'about a month ago';
+		}
+		elseif ($offset < (date::MONTH * 4))
+		{
+			return 'a couple of months ago';
+		}
+		elseif ($offset < date::YEAR)
+		{
+			return 'less than a year ago';
+		}
+		elseif ($offset < (date::YEAR * 2))
+		{
+			return 'about a year ago';
+		}
+		elseif ($offset < (date::YEAR * 9))
+		{
+			return 'a couple of years ago';
+		}
+		elseif ($offset < (date::YEAR * 14))
+		{
+			return 'about a decade ago';
+		}
+		elseif ($offset < (date::YEAR * 32))
+		{
+			return 'a couple of decades ago';
+		}
+		elseif ($offset < (date::YEAR * 64))
+		{
+			return 'several decades ago';
+		}
+		else
+		{
+			return 'a long time ago';
+		}
+	}
+
+} // End date