Ecommerce user ip detect Functions.php

<?php
//Establishing the connection
$db = mysqli_connect("localhost","root","","myshop");

//function for getting the IP address

function getRealIpAddr()
{
if(!empty($_SERVER['HTTP_CLIENT_IP']))
//check ip from share internet

{
$ip=$_SERVER['HTTP_CLIENT_IP'];
}
elseif(!empty($_SERVER['HTTP_X_FORWARDED_FOR']))
//to check ip is pass from proxy
{
$ip=$_SERVER['HTTP_X_FORWARDED_FOR'];
}
else{
$ip=$_SERVER['REMOTE_ADDR'];

}
return $ip;

}
?>