[Phplib-users] Is there a way to save sessions between page open and close?

[Herouth M. <he...@ti...>]

I have a captcha system, wherein a php-generated image generates a number and
displays it, and the user has to respond with the same number.

If he does, a sensitive operation is performed, which we want to avoid being
performed several times in a row.

We find that if the user clicks the submit button on the form several times in
a row, it creates several connections, all of which check the number and do
the operation. Since the page does not reload between these submissions, the
number does not get replaced.

I thought I'd unregister the number directly after I verify that it's the
right one, so that the next connection made will not reach the sensitive
part, because its comparison will fail.

However, since the data is only saved in the session at the end, when I do the
page_close(), this is not working. I'd like to be able to control when the
session is saved, so that only the first connection will be able to access
that number.

Any ideas?

Herouth