[RESOLVED] $data on the end of the script

Greg_BigPhpAmat

Hi.
I am trying to prevent my script before refresh bu user.
My idea is to set $data=1 on the end of the script and on the begining read $data.
If is ==1 exit() if ==0 continue.
...but when script is refresed value of $data gets lost. How to keep this value after refresh? Can somebody help me to set this value?

NogDog

May use sessions and a session variable?

Greg_BigPhpAmat

NogDog;10919604 wrote:
May use sessions and a session variable?

Could you give me some example? I found this but....dont know how can I use it?

thx.

bradgrafelman

http://www.tizag.com/phpT/phpsessions.php

Also has information about using cookies to make data persist between pageviews.

Greg_BigPhpAmat

bradgrafelman;10919715 wrote:
http://www.tizag.com/phpT/phpsessions.php

Also has information about using cookies to make data persist between pageviews.

....but can I use

session_destroy();

in a link (a href=.." onclick=?) or on exit page?

bradgrafelman

That depends by what you mean "in a link"... HTML/Javascript is client-side code, and PHP is server-side code, so if you mean can you execute PHP code in an onClick handler, then no, that's not directly possible ('not directly' meaning without something like AJAX).

You can, however, link to a "logout.php" page which destroys the session data.

Greg_BigPhpAmat

...by accident I put my post here - I should post it @" for newbes" as always🙂.

When my script have been processed and message sent then I get (in same script) echo message thats OK and link to close window. I want to leave session as is to refresh but clear it when is exit of the page (or click on that link). Link maybe JS or HTML.

Maybe my data from form is stored in some cache, memory......I have no idea where (but is there) and maybe there is some simple instruction -> clearthatdata() 🙂
It gets there as I assume by $_POST['xxx'].

Greg_BigPhpAmat

from last minute... if I include (logout.php) in some place in script and logout.php will be only 1 line with
[PHP<? ]session_destroy(); ?>[/code]
Will it work?

bradgrafelman

Again, that depends on what you mean by "include." Are you talking about creating a link to this logout.php script? If so, then no, you would also need to call [man]session_start/man before you try to destroy the session.

Greg_BigPhpAmat

thx for advice!! Finally I got it.
I cant believe that is only 3 lines in same page!!