note 58165 added to function.session-start

You may want to do the following: When suitable session data exists on the server, it shall be loaded, but when not, no new session shall be created. This could be to avoid unnessary cookies to be set and/or unnecessary sessions to lay around on the server (in worst cases, that would be one for each and every visitor). Some people may not care about either reason, but some may. The problem is that session_start() will create a new session when none exists. The following works for me: <?php session_name('myname'); /* create a session anyway */ session_start(); if (/* is $_SESSION containing valid data? */) { /* yes, do my stuff here */ } else { /* no, that session just got created; delete it again */ setcookie(session_name(), '', time() - 42000); $_SESSION = array(); session_destroy(); } ?> ---- Manual Page -- http://www.php.net/manual/en/function.session-start.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+58165 Delete: added to the manual -- http://master.php.net/manage/user-notes.php?action=delete+58165&report=yes&reason=added+to+the+manual Delete: bad code -- http://master.php.net/manage/user-notes.php?action=delete+58165&report=yes&reason=bad+code Delete: spam -- http://master.php.net/manage/user-notes.php?action=delete+58165&report=yes&reason=spam Delete: useless -- http://master.php.net/manage/user-notes.php?action=delete+58165&report=yes&reason=useless Delete: non-english -- http://master.php.net/manage/user-notes.php?action=delete+58165&report=yes&reason=non-english Delete: already in docs -- http://master.php.net/manage/user-notes.php?action=delete+58165&report=yes&reason=already+in+docs Delete: other reasons -- http://master.php.net/manage/user-notes.php?action=delete+58165&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+58165&report=yes Search -- http://master.php.net/manage/user-notes.php