function uptime($f3)
{
$this->sysinfo = \SysInfo::instance();
$values = array();
$values['uptime'] = $this->sysinfo->uptime;
echo json_encode($values);
}
/**
* The function used to set and/or retrieve the current instance of this class.
*
* @return object $instance A reference to an instance of this class.
*/
public static function get_instance()
{
if (null == self::$instance) {
self::$instance = new self();
}
// end if
return self::$instance;
}
