Count numbers of active sessions
<blockquote>
  <p><strong>Possible Duplicate:</strong><br>
  <a href="http://stackoverflow.com/questions/679657/find-number-of-open-sessions">Find Number of Open Sessions</a><br>
  <a href="http://stackoverflow.com/questions/3426844/access-active-sessions-in-php">Access active sessions in PHP</a>  </p>
</blockquote>



<p>When a user arrives to a webpage, a session variable is created for the user and I wonder if it's possible to count the numbers of active sessions?</p>
