note 44576 added to function.session-id

You may use this to pass a session along multiple domains on the same server as long as the first domain passes the session id along with the request to the new domain (i.e. via GET or POST, a COOKIE will not work). This assumes the session data is stored in the same place. // domain #1 <?php session_start(); $_SESSION['var'] = 'a value'; ?> <a href="http://example.com/a.php?sid=<?php echo session_id(); ?>">go here</a> // domain #2 <?php session_id($_GET['sid']); session_start(); // You are now sharing the same session. echo $_SESSION['var']; ?> ---- Manual Page -- http://www.php.net/manual/en/function.session-id.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+44576 Delete -- http://master.php.net/manage/user-notes.php?action=delete+44576&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+44576&report=yes Search -- http://master.php.net/manage/user-notes.php