John Black <spam@xxxxxxxxxxxxxxxxxxxxxxxx> wrote: >On 25.08.2011 15:00, Andreas wrote: >> Am 25.08.2011 11:01, schrieb John Black: >>> True, a SESSION can be reset by closing the browser but I am not >>> trying to deny a user from submitting different information again. I >>> want to prevent them from submitting the same data again by accident >>> (back button or refresh). >> what about storing an md5 of the message body in the db? > >Sure you can do all kinds of things with a database but I try to avoid >unnecessary connection to the db because they are expensive. >It all comes down to how badly you want to prevent the same message to >be sent twice. > >I have seen bots submit the same message from multiple IPs and some >will >even modify the message a bit by adding some random data to the end. So > >I am not sure how effective a simple md5 check will be. >-- >John > >-- >PHP General Mailing List (http://www.php.net/) >To unsubscribe, visit: http://www.php.net/unsub.php So its the same message except for the bits at the bottom that are different? Sounds like its not the same message then. Thanks, Ash http://www.ashleysheridan.co.uk -- Sent from my Android phone with K-9 Mail. Please excuse my brevity. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
