How can i see any variable of the main frame through PHP?

PHP
1

Eg: [noparse]www.maindomain.com[/noparse] contains this file:

<html>
<head></head>
<body marginheight="0" marginwidth="0">
<iframe src="http://www.serverdomain.com/index.php" width="100%"  height="100%" frameborder="0" transparency marginheight="0" marginwidth="0">
</iframe>
</body>
</html>

And the second domain, “serverdomain.com”, contains another file: index.php

If I search in the $_SERVER variables, the first time index.php loads, i can get the main “caller” file from the HTTP_REFERER var, but in the following reloads, this value changes, and I can’t get who is the caller domain (in this example, it should be “maindomain.com”.

I could do that parsing a session var, but that doesnt help if the session runs out.

Any quiz?

2

HTTP_REFERER is notoriously unsafe to use for the purposes of tracking.

What exactly are you trying to do (and why is it being done across two servers?)

3

Up to now, i installed the same CMS in every website I own, but now I want to install the CMS only once, and refer the others to that one. Of course, using different datasources for each domain, and using different Usernames and passwords.

4

I’d personally use a key-and-session system to do it, but that’s me…

Using HTTP_REFERER is very unsafe and unpredictable - if a browser has referers disabled, your code will flop.

5

I think it’s the only option left. But, when session expires, what should the file do? without any session, it would not know from where it was refered.

6

if there is no session, have Javascript tell the parent to reload.

7

As always, you are RIGHT! Thank you in advance!!