Get and/or set the current session name session_module_name session_regenerate_id Session Functions PHP Manual session_name (PHP 4, PHP 5)session_name — Get and/or set the current session name Description string session_name ([ string $name ] ) session_name() returns the name of the current session. The session name is reset to the default value stored in session.name at request startup time. Thus, you need to call session_name() for every request (and before session_start() or session_register() are called). Parameters name The session name references the session id in cookies and URLs. It should contain only alphanumeric characters; it should be short and descriptive (i.e. for users with enabled cookie warnings). If name is specified, the name of the current session is changed to its value. Warning The session name can't consist of digits only, at least one letter must be present. Otherwise a new session id is generated every time. Return Values Returns the name of the current session. Examples Example #1 session_name() example <?php/* set the session name to WebsiteID */$previous_name = session_name("WebsiteID");echo "The previous session name was $previous_name<br />";?> See Also The session.name configuration directive session_module_name session_regenerate_id Session Functions PHP Manual