How to detect the parent of an iframe?

[etrader]

When displaying a webpage within iframe of facebook fan page, how I can detect that my page is viewed within the facebook iframe? I want to have a if else statement to change something within the page if it is viewed through facebook fanpage (not by direct visit).

[Jacbey]

Here, something like this might work.

 

 

<?php

if (javascript:alert(parent.location.href) == http://www.facebook.com/*name of your webpage*)

{

//first code here

else

//else code here

?>

 

Haven't tested it so, I don't know.

[xyph]

This is JavaScript functionality, and not PHP.

 

The post above me is just wrong

[etrader]

I hoped to have something like $_SERVER to get the parent of iframe.

[KevinM1]

I hoped to have something like $_SERVER to get the parent of iframe.

 

How would the server variables associated with your script detect that another script - executing on another server - framed your script?

[etrader]

It should be something like agent and getting information about visitors. When my script is accessed through an iframe (here facebook) there should be a difference with the case that the page is directly accessed. I think in the iframe case, facebook is accessing my page, and I should be able to detect facebook as a something like agent.

[KevinM1]

Except, Facebook isn't an agent, and aside from REQUEST_URI, there isn't anything available to you that could help.  Even then, REQUEST_URI may not be reliable.  The only sure-fire way to detect if you've been framed is to use JavaScript.

 

http://www.php.net/manual/en/reserved.variables.server.php