note 69723 added to function.header

This seems to work well for me to prevent double posting on my web application that comes from the refresh and back buttons. if ( $_POST ){ header('Expires: Mon, 26 Jul 1997 05:00:00 GMT'); header('Cache-Control: no-store, no-cache, must-revalidate'); header('Cache-Control: post-check=0, pre-check=0', FALSE); header('Pragma: no-cache'); } ---- Server IP: 64.71.164.2 Probable Submitter: 70.173.237.254 ---- Manual Page -- http://www.php.net/manual/en/function.header.php Edit -- https://master.php.net/note/edit/69723 Del: integrated -- https://master.php.net/note/delete/69723/integrated Del: useless -- https://master.php.net/note/delete/69723/useless Del: bad code -- https://master.php.net/note/delete/69723/bad+code Del: spam -- https://master.php.net/note/delete/69723/spam Del: non-english -- https://master.php.net/note/delete/69723/non-english Del: in docs -- https://master.php.net/note/delete/69723/in+docs Del: other reasons-- https://master.php.net/note/delete/69723 Reject -- https://master.php.net/note/reject/69723 Search -- https://master.php.net/manage/user-notes.php