Detect Real Client IP from Proxy Using PHP

By: Unknown on 14:34

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Fetching out proxy users and exposing their real IP is what I really enjoy, I remember using Google Search in Opera Mini Mobile which uses its proxy to forward. But to my suprise, it got to know am in Nigeria and redirect me to .com.ng :D .

So glad to find out PHP doing this, which makes our site or project more mature and advance :) . In PHP simply use the  $_SERVER['HTTP_X_FORWARDED_FOR']  :)

$_SERVER['HTTP_X_FORWARDED_FOR'] is only available if the server detects the client using a proxy else it turns empty or unavailable. This looks for original IP that is been forwarded.

Now lets use this function, firstly lets check if the client is really using a Proxy and echo his real IP

if(isset($_SERVER['HTTP_X_FORWARDED_FOR']))
 {
  //Actually he is! :D, lets expose him and tell him his right IP
  echo 'The main IP of the Proxy or Opera Mini is'.$_SERVER['HTTP_X_FORWARDED_FOR'];
 }

we are done with that and the above code will only run if he is on proxy, now lets write one that will tell the Client he/she is not using proxy if necessary :)

if(empty($_SERVER['HTTP_X_FORWARDED_FOR']))
 {
  echo 'You are currently not using a proxy';
 }

I guess we are done here, below is the full code

<?php
//Lets be sure if he is using proxy
if(isset($_SERVER['HTTP_X_FORWARDED_FOR']))
 {
  //Actually he is! :D, lets expose him and tell him his right IP
  echo 'The main IP of the Proxy or Opera Mini is'.$_SERVER['HTTP_X_FORWARDED_FOR'];
 }
else
 {
  //Oh, he is browsing with his normal IP :)
  echo 'The user is currently not using a proxy';
 }
?>