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PHP Get user remote domain name

Posted on 2014-03-26
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Last Modified: 2014-03-26
Hello Experts.

There is a way to get users IP using $_SERVER['REMOTE_ADDR'], etc.
But how can i get user's domain?

I have a page that returns a json response.

that page is consulted by another website using the function "file_get_contents" and that website is "www.mydomain.org".

Can i get the domain name the consulted me ("www.mydomain.org") besides his IP address?
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Question by:justaphase
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Ray Paseur earned 500 total points
ID: 39955805
No.  Clients do not have a domain name.  You may coincidentally be able to do a reverse IP lookup and find that some REMOTE_ADDR are associated with a domain, but it's not something that is dependable at all.  For example, which of my 32 web sites is my REMOTE_ADDR associated with?  My email is at Gmail, but so are millions of others.  It's just not information that exists in any way that you can use.
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by:justaphase
ID: 39955976
You're right..
That's what i'm gonna do.
Something like this:

$array = array(
"www.domain1.com" => gethostbyname("www.domain1.com")
,"www.domain2.pt" => gethostbyname("www.domain2.pt")
,"www.domain3.org" => gethostbyname("www.domain3.org")
);

while ($ip = current($array)) {
      if ($_SERVER['REMOTE_ADDR'] == $ip) echo "it's one of my clients";
      next($array);
}

Thx for the help :)
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LVL 109

Expert Comment

by:Ray Paseur
ID: 39956008
Before you write that while() loop you might want to look up foreach().  Just a thought.  Thanks for the points and thanks for using EE, ~Ray
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