Who reads the page ?

Anon

Hello,
probably you know that PHP can read the remote files as well as local files. You can read remote files a code like that :
fopen("http://www.address.com","r");
And assume that there is a remote file on a domain and its output is the IP adress of the computer who reads the file remotely. check the below code part to make it clear :

a.php on Domain 'a' :
<?
//echo who reads the file
//what should I write here ?
?>

b.php on domain b with IP :'900.900.900.900'
<?
$file = "http://www.a.com/a.php";
$dosya = fopen($file,"r");
echo fread($dosya,10000);
?>

And when b.php runs, I want 900.900.900.900 -the IP of domain b- is printed on the page..
And it is going o like that, who reads the file sees own IP on the screen.

I am waiting for your helps...

[deleted]

Manuals are your friends, read them.

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

Anon

You are right. Indeed I have already searched among the pre-defined vairables, and tried some of them.
But I couldn't find any that can handle my need.
Yes, I am still waiting for an answer

interactive

go get some money and pay someone then who wants to help a cocky stuck up sob?

Anon

cocky stuck up sob ? Me ?
Hey I don't understand why you treat me like that.
If I hurt you, I apologize for it. If there is something unkind in my messages, please give it to my English, it is hard to use it perfectly as a foreign language.

I am so surprised :-(

interactive

oh i thought you were an american im sorry it just came accross as you had to have help kinda thing my apoligies

Anon

Anyway, I will pay attention to being kinder.
But , I still have to solve my problem, :-)

khaine

Doesnt REMOTE_ADDR display this information?

Mark.

Anon

What? With a name like "Mustafa Karabulut", a Turkish email and a Turkish IP address?

It's great that the Net is so thoroughly global and nondiscriminatory, and people wanting assitance can draw on the expertise of the whole planet regardless of physical location, but that never meant requiring that everyone become US citizens.

Sheesh.

As for the question, it does sound like $_SERVER['REMOTE_ADDR'] is what is wanted ($REMOTE_ADDR or $HTTP_SERVER_VARS['REMOTE_ADDR'] on older versions).

Since the described remote file read is done using the http protocol, Domain B's IP is the one that Domain A will use for $REMOTE_ADDR.

If you want the user's IP (and not Domain B's), that information is not available to Domain A. The http connection between the user and Domain B, and the connection between Domain B and Domain A, are two separate things - the only thing in common is that Domain B is involved in both.

Anon

Well,not exactly.It displays an IP, but I don't know whose it is.
The displayed IP isn't the domain a's IP and not b's ,neither.
The domains that I try the script on are on the same host. I suspect that this IP is the hosting firm's IP. But really don't know.
Any idea ?

Anon

It is surprising that today everyone around here is surprised that I am not from US. I thought that many foreigners are here among the forum users.Anyway...
If you follow the other branch of this topic, you will find out my answer about REMOTE_ADDR . The remote_addr displays something but it is not what I want to get.
Confused ...

Anon

I found out that the displayed IP is possesed by the owner domain of two domains. And it is always same if 'a.php' is called from any domain under the same 'owner domain'.
So I can't understand which domain read the page , if they are under the same owner domain.

Hey, what is this damned 'owner domain' thing?

Anon

There are many foreigners here. It's just that most of us seem to write better English than many Americans...

But as for REMOTE_ADDR, that's probably as close as you'll get. Here's why:

Let's say your picture of what's happening is like this:

Now Domain A's value for $REMOTE_ADDR will be 123.123.123.123 - that is, Domain B's IP. Domain A has no idea what the Users's IP is. Domain B knows, but it hasn't told Domain A.

Now if Domain B operates through a proxy server, the situation becomes

Now Domain A's $REMOTE_ADDR will read 155.155.155.155 - the Proxy's IP. Domain A has no idea what Domain B's IP is, and the Proxy isn't going to tell.

In the situation you describe, it sounds like your hosting firm has set up a proxy, and any requests from its hosted domains pass through it.

You may want to check with your hosting company to see if the IP you're getting really is theirs (I'm willing to bet it's one of their proxy servers).

I was going to say that it would be possible for them to reconfigure the hosting server to bypass the proxy, but then I realised that it would be pointless - you'd need the IPs for Domain A and/or B, and if you had those you wouldn't need the script! :-)

So the short answer is: you'll only be able to get the IP address of the last proxy in the chain between Domain B and Domain A. it's the proxy's job to make sure you can't see any further back than that.

Anon

You are so kind. And your message is of so much help. But it seems I won't be able to retrieve this problem.
Anyway...
I have to focus on another way to solve my main problem, indeed this IP thing isn't the main thing, it is only a part of the main thing.
Hmm. Let me think about and come with other solution and of course other questions tomorrow :-)