gistfile1.php

<?php defined('SYSPATH') or die('No direct script access.');

class chrono_Core {

	/**
	 * Outputs a textual representation of
	 * how long ago something happened
	 *
	 * @param   int          time_stamp 
	 * @return  string
	 * @author  Sam Clark
	 */
	public static function age($time_stamp)
	{
		// Current time
		$current_time = time();

		// Create time array
		$time = array
		(
			'seconds'    => $current_time - $time_stamp,
			'minutes'    => floor(($current_time - $time_stamp) / 60),
			'hours'      => floor(($current_time - $time_stamp) / (60 * 60)),
			'days'       => floor(($current_time - $time_stamp) / (60 * 60 * 24)),
			'weeks'      => floor(($current_time - $time_stamp) / (60 * 60 * 24 * 7)),
			'years'      => floor(($current_time - $time_stamp) / (60 * 60 * 24 * 365)),
		);

		if ($time['years'] > 0)
			return $time['years'].' year'.($time['years'] == 1 ? '' : 's').' ago';
		else if ($time['weeks'] > 0)
			return $time['weeks'].' week'.($time['weeks'] == 1 ? '' : 's').' ago';
		else if ($time['days'] > 0)
			return $time['days'].' day'.($time['days'] == 1 ? '' : 's').' ago';
		else if ($time['hours'] > 0)
			return $time['hours'].' hour'.($time['hours'] == 1 ? '' : 's').' ago';
		else if ($time['minutes'] > 0)
			return $time['minutes'].' minute'.($time['minutes'] == 1 ? '' : 's').' ago';
		else if ($time['seconds'] > 0)
			return $time['seconds'].' second'.($time['seconds'] == 1 ? '' : 's').' ago';
	}

} // End Chrono helper