<?php
function get_client_ip_env() {
    $ipaddress = '';
//    if (getenv('HTTP_CLIENT_IP'))
//    $ipaddress = getenv('HTTP_CLIENT_IP');
	if(getenv('HTTP_X_FORWARDED_FOR'))
        $ipaddress = getenv('HTTP_X_FORWARDED_FOR');
//      if(getenv('add_x_forwarded_for_proxy'))
//      $ipaddress = getenv('add_x_forwarded_for_proxy');
//    if(getenv('HTTP_FORWARDED_FOR'))
//        $ipaddress = getenv('HTTP_FORWARDED_FOR');
//	if(getenv('HTTP_FORWARDED'))
//  $ipaddress = getenv('HTTP_FORWARDED');
//   if(getenv('REMOTE_ADDR')) 
//   $ipaddress = getenv('REMOTE_ADDR');
    else
        $ipaddress = 'UNKNOWN';

    return $ipaddress;
}
$ip = get_client_ip_env();
echo 'ip-'.$ip 
?>