setcookie()

[skdzines]

I am trying to pass a xreferrer_id to my index.php page and setting a cookie using

<?php
setcookie('xreferrer_id',$xreferrer_id,time()+1209600);
?>

I am passing it to index.php like so:
http://www.mysite.com/index.php?xreferrer_id=20

It is being passed to index.php and I can print it to the screen. However, when I try passing it to https://secure.mysite.com and using this to grab the cookie:

$xreferrer_id = $HTTP_COOKIE_VARS['xreferrer_id'];

It gets lost. Any ideas as to why? Could it be because it is going to https://secure from http:// ?

Thanks for your help.

[planetsim]

[url]http://[/url] and [url]https://[/url] work differently. A obvious example is they work on different ports HTTPS works on 443 and HTTP 80

This link should help you work it out

http://au3.php.net/setcookie

However sessions are preffered especially in your situation

[skdzines]

Not real sure I understand. Do I need to set the cookie as secure so it will pass over https? If so, how I do I do that with what I have already?

I have also tried using sessions. Can you explain this to me?

if I have the referral link come from any site to my site using https://secure.mysite.com/step_one.php?referrer_id=20 and store that variable as a session var on step_one.php using:

session_start();
$_SESSION['referrer_id'] = $referrer_id;
$referrer_id = $_SESSION['referrer_id'];

The number 20 will display in the refferer text box. I can then also pass it to any other page on the site using:

<? $_SESSION['referrer_id']; ?>

When I go back to step_one.php where I was originally when the session was started, the variable $referrer_id (20) is still there.

Now if I have the referrer link set to this:
http://www.mysite.com/index.php?referrer_id=20 and store it has a session variable the same way as in step_one.php, I can print it to the screen as well. However once I try to pass it over https:// it gets lost.

Why can I send it from https to http and back to https, but not from http originally to https??

Thanks for your help.