Counting using a Session Variables?
Can anyone help me with the following problem?
At the moment I have a form where a customer can request a catalogue. On submission the info is inserted into a database and an email is sent to me so I can action their request. At the moment there is nothing stopping someone entering in their details x amount of times and in theory getting x amount of catalogues sent to them.
I would like to be able to put a limit of 3 catalogue requests per session so that, after the 3rd time, an email is not sent to me and a message appears on screen to say "you've had enough!".
Does anyone know how I would add this functionality into my existing code? At the moment the form is on one page, the info get submitted to a process page where the email is also sent out and they are redirected to a 'thank you page' afterwards.
I know that if a user closed down their browser and started again they could order more catalogues but i'm more interested in stopping the users from going this in one go.
Thanks in advance