<?php


// idle time in minutes
define("MAX_IDLE_TIME", 3); 

/**
 * online class : 
 * 
 * @package 
 * @author Ben Yacoub Hatem <hatem@php.net>
 * @copyright Copyright (c) 2004
 * @version $Id: online.class.php,v 1.1 2005/03/16 06:20:57 hatem Exp $ - 25/05/2004 14:04:22 - online.class.php
 * @access public
 **/
class online{
	/**
     * Constructor
     * @access protected
     */
	function online(){
		
	}
	
	/**
	 *
	 * @access public
	 * @return void 
	 **/
	function who(){

		$path = session_save_path();
		if (trim($path)=="") {
		    return FALSE;
		}
		$d = dir( $path); $i = 0;
		while (false !== ($entry = $d->read())) {
				
			if ($entry!="." and $entry!="..") {
				if (time()- filemtime($path."/$entry") < MAX_IDLE_TIME * 60) {
					$i++;
				}
			}
		}
		$d->close();
		
		return $i;
	}
	
}

echo online::who();


?>