visitor_count
From CashCrusaderWiki
Action visitor_count is used to show visitor counters. This action takes one parameter and replaces %MEMBERS% and %GUESTS% from it using counters maintained by closely related action visitor.
Required CashCrusader version: 2.10
Extra Requirement: usage of visitor to track users
Example usage:
<?php action('visitor_count','Members online: %MEMBERS%<br>Guests online: %GUESTS%<br>');?>