Display form only once per user using sessions

four questions to appear on each page of my web site, but only once

[s9901470]

Hi

I'd like a form with four questions to appear on each page of my web site, but only once per page. At the moment, if someone visits a page twice they get a questionnaire about it again.

Is the a way to use PHP sessions to remember not to display the form if it has already been used?

Any suggestions most welcome.

Thank you in advance,
Ed

[henry0]

Display your form conditionally.
If it has been used then it fed something
Check if “something is empty or not or modified or not
And use if and else
or even:
if
(isset(S_POST['aaaa']) &&!empty(S_POST['aaaa']) )
or the reverse
(!isset----------- && emty--------- ) )

[s9901470]

Is that the same as using sessions?

[henry0]

Yes & No, the example does not use sessions
However you may use sessions with the same result
check if session exists and react accordingly.

[henry0]

You may also read this post (If you use a DB)

HERE [webmasterworld.com]

[s9901470]

I'm not sure how to display a form conditionally based on this, because the page they have just visited might not have been a form page? The form appears on the main page, but they might move around the site and come back to it. If they come back, I don't want it displayed. Does that make sense?

if
(isset(S_POST['aaaa']) &&!empty(S_POST['aaaa']) )

[henry0]

Replace $_POST by $_SESSION

[s9901470]

I think I want something like this (found it at [mail-archive.com...]

However, I don't need them to register $usr, I just want it to check if a session hasn't been opened, display the form. If it has, don't display it, and carry the session to the next page.

<?php
session_start();

// CHECK IF SESSION EXISTS.
if (!isset($_SESSION['usr'])) {
// IF NO, THEN CHECK FOR COOKIE
if (isset($_COOKIE['usr'])) {
// IF 'YES' THEN START SESSION
$_SESSION['usr'] = $_COOKIE['usr'];
}
// IF 'YES' THEN QUIT }
else {
// IF THE SESSION EXISTS, MAKE SURE [EMAIL PROTECTED] VALUE MATCHES THAT OF THE COOKIE
setcookie("usr", $_SESSION['usr'], mktime(21,00,0,12,31,2014),"/","bigbarn0.kbnet.net", 0);
// END
}

?>

Any help would be most welcome
Thanks