note 58727 added to function.msession-timeout

I have tried msession_timeout(), but it's not working........ i had code in following manner, /* code */ $ses = session_start(); msession_timeout($ses,10); and getting following massage, /* Error */ Fatal error: Call to undefined function: msession_timeout() can you just help me out with this code. I want my session to timeout. ---- Manual Page -- http://www.php.net/manual/en/function.msession-timeout.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+58727 Delete: added to the manual -- http://master.php.net/manage/user-notes.php?action=delete+58727&report=yes&reason=added+to+the+manual Delete: bad code -- http://master.php.net/manage/user-notes.php?action=delete+58727&report=yes&reason=bad+code Delete: spam -- http://master.php.net/manage/user-notes.php?action=delete+58727&report=yes&reason=spam Delete: useless -- http://master.php.net/manage/user-notes.php?action=delete+58727&report=yes&reason=useless Delete: non-english -- http://master.php.net/manage/user-notes.php?action=delete+58727&report=yes&reason=non-english Delete: already in docs -- http://master.php.net/manage/user-notes.php?action=delete+58727&report=yes&reason=already+in+docs Delete: other reasons -- http://master.php.net/manage/user-notes.php?action=delete+58727&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+58727&report=yes Search -- http://master.php.net/manage/user-notes.php