title: php - Is this possible to unset one variable from other session?
body: <p>If I want to unset one variable in current user session then I can use command <code>unset($_SESSION['something'])</code>.</p>
  
  <p>Is this possible to unset only one variable from other session in case when I know PHPSESSID value (can I do it without changing current user session)? I would like check if session of PHPSESSID still exist, if exist then <code>unset($_SESSION['something'])</code> of chosen PHPSESSID.</p>