This is a more copy-paste than read tutorial, but ah whatever. To do this code, your host must support PHP.

To show your visitor's IP, add the following line wherever:

<?php $visitorip = $_SERVER['REMOTE_ADDR'];
echo "$visitorip"; ?>

Just paste it where you want it to go. Nothing really to it, just don't remove the "<" and ">", or else it won't work.

:tooth:

Hi,

That works well for a few cases, but what if the user is behind a proxy?

You can use a conditional statement that will check as shown below:

PHP Code:

<?php
if(isset($HTTP_X_FORWARDED_FOR))  // is the HTTP_X_FORWARDED_FOR variable defined already?
{
    if ($HTTP_X_FORWARDED_FOR)    // A proxy WAS detected..
        {
     ?>
     Proxy Detected.
                Your actual IP address: <?= $HTTP_X_FORWARDED_FOR ?>
     Your Proxy Server: <?= $HTTP_VIA ?>
                Your Proxy I.P address: <?= $REMOTE_ADDR ?>
     <?
        }
}
else   // no proxy was detected
    {
        ?>
        NO Proxy detected - Your Actual IP is: <?= $REMOTE_ADDR ?>
        <?
    }
?>

good point babyboy. Nice code.

Interesting script but it is good to know that HTTP header variable X_FORWARDED_FOR might help only if visitor is behind transparent (non anonymous proxy server).
If visitor use real anonymous proxy server then the ip address can not be determined.
However anonymous proxy can be identify because usually anonymous proxy server have HTTP_VIA or PROXY_CONNECTION variable.
If visitor use so called High anonymous proxy (elite server or Level 1) you will not be able to identify proxy because it does not send any of proxy variables and it looks as visitor does not use proxy at all.
High anonymous proxy could be traced only through analyzing of proxy ports.