note 46949 added to function.session-start

If You are not using cookies to store session_id's, that does not mean, that session_start() will not send any headers at all. It still sends cache controlling information to user. For example: Expires: Thu, 19 Nov 1981 08:52:00 GMT Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0 Pragma: no-cache Even, if You set cache_limiter to none (via ini_set('session.use_cookies', 0) or ini_set('session.cache_limiter', 'none')), session_start() still tries to send empty headers and that causes error message "Cannot send session cache limiter - headers already sent". So, use output buffering, if You need to output something before session_start(). session_start ---- Manual Page -- http://www.php.net/manual/en/function.session-start.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+46949 Delete -- http://master.php.net/manage/user-notes.php?action=delete+46949&report=yes Reason: bad code -- http://master.php.net/manage/user-notes.php?action=delete+46949&report=yes&reason=bad+code Reason: spam -- http://master.php.net/manage/user-notes.php?action=delete+46949&report=yes&reason=spam Reason: useless example -- http://master.php.net/manage/user-notes.php?action=delete+46949&report=yes&reason=useless+example Reason: contains commercial links -- http://master.php.net/manage/user-notes.php?action=delete+46949&report=yes&reason=contains+commercial+links Reason: useless note -- http://master.php.net/manage/user-notes.php?action=delete+46949&report=yes&reason=useless+note Reject -- http://master.php.net/manage/user-notes.php?action=reject+46949&report=yes Search -- http://master.php.net/manage/user-notes.php