Who's here ?

Anon

Anybody know how to determine who is visiting your website at a given moment? Is there an HTTP global that contains the visitor's IP address?

If I'm not mistaken, this is how PHP (Personal Home Page) originally got its start.

daantje79

you could use

$ip = getenv ("REMOTE_ADDR");

good luck!

reagent

just create a test script that has

phpinfo();

in it and check the output. you're probably looking for something like $REMOTE_ADDR

daantje79

By the way if you want to make sure you don't get the ip of the isp cache server try this small script...

if (getenv(HTTP_X_FORWARDED_FOR)){
$ip=getenv(HTTP_X_FORWARDED_FOR);
}
else {
$ip=getenv(REMOTE_ADDR);
}

rs232

// get hostname and IP address if ($HTTP_SERVER_VARS["HTTP_X_FORWARDED_FOR"] != ""){
$IP = $HTTP_SERVER_VARS["HTTP_X_FORWARDED_FOR"];
$proxy = $HTTP_SERVER_VARS["REMOTE_ADDR"];
$host = @gethostbyaddr($HTTP_SERVER_VARS["HTTP_X_FORWARDED_FOR"]);
}else{
$IP = $HTTP_SERVER_VARS["REMOTE_ADDR"];
$host = @gethostbyaddr($HTTP_SERVER_VARS["REMOTE_ADDR"]);
}

$ip will be the persons ip address
and $host their hostname.

Anon

I ended up using :

$ip = getenv ("REMOTE_ADDR");

And then wrote a function to record this info to a file:

RecordIPAddress($ip);

It all works fine.

Anon

It would be better do it this way:

// get hostname and IP address
if ($HTTP_SERVER_VARS["HTTP_X_FORWARDED_FOR"] != ""){ // The have been forwarded by a proxy server get their IP address
$IP = $HTTP_SERVER_VARS["HTTP_X_FORWARDED_FOR"]; // IP Address of User
$proxy = $HTTP_SERVER_VARS["REMOTE_ADDR"]; // IP Address of proxy server
}else{ // Else just get their IP Address
$IP = $HTTP_SERVER_VARS["REMOTE_ADDR"]; // IP Address of User
}

The reason being if the person is behind a proxy this will still get their ip address. If you don\'t do it this way you will get the IP address of the proxy server and not the user.

If thats what you want then never mind. Just wanted to make sure you were aware of that.