This is a simple PHP tutorials and script for getting remote visitors with their IP Address. With this tracking your visitor is very easy and simple with PHP. PHP has a set of global variables. Among them, we use $_SERVER variable to get an IP address of a remote computer. REMOTE_ADDR is the constant that is used to get the IP Address of a remote computer.

Note that this script may not return IP Address if the client/user firewall is on or when client is using some proxy software.

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< ?php
 $ipaddress=$_SERVER["REMOTE_ADDR"];
 echo "Your IP ADDRESS: ". $ipaddress;
?>

Another way of retrieving IP Address is using function getenv().

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< ?php
 $userip = $_SERVER["HTTP_X_FORWARDED_FOR"];
 $proxy = $_SERVER["REMOTE_ADDR"];
 $host = @gethostbyaddr($_SERVER["HTTP_X_FORWARDED_FOR"]);
?>

OUTPUT

Server IP ADDRESS: 
User IP ADDRESS: 38.103.63.60
User HOST ADDRESS:

$userip is the IP address of the user thats been passed on by the server. $proxy is the IP address of the server itself and $host is the host address of the user. If your PHP version is less than 4.3 then use $HTTP_SERVER_VARS in place of $_SERVER

Download : PHP Script Get IP Address of Visitor