PHP client IP

get-client-ip.php

<?php

private function get_client_ip()
{
	$ipaddress = '';
	if ($_SERVER['HTTP_CLIENT_IP'])
		$ipaddress = $_SERVER['HTTP_CLIENT_IP'];
	else if($_SERVER['HTTP_X_FORWARDED_FOR'])
		$ipaddress = $_SERVER['HTTP_X_FORWARDED_FOR'];
	else if($_SERVER['HTTP_X_FORWARDED'])
		$ipaddress = $_SERVER['HTTP_X_FORWARDED'];
	else if($_SERVER['HTTP_FORWARDED_FOR'])
		$ipaddress = $_SERVER['HTTP_FORWARDED_FOR'];
	else if($_SERVER['HTTP_FORWARDED'])
		$ipaddress = $_SERVER['HTTP_FORWARDED'];
	else if($_SERVER['REMOTE_ADDR'])
		$ipaddress = $_SERVER['REMOTE_ADDR'];
	else
		$ipaddress = 'UNKNOWN';
	return $ipaddress;
}
	
function get_client_ip() {
    $ipaddress = '';
    if (getenv('HTTP_CLIENT_IP'))
        $ipaddress = getenv('HTTP_CLIENT_IP');
    else if(getenv('HTTP_X_FORWARDED_FOR'))
        $ipaddress = getenv('HTTP_X_FORWARDED_FOR');
    else if(getenv('HTTP_X_FORWARDED'))
        $ipaddress = getenv('HTTP_X_FORWARDED');
    else if(getenv('HTTP_FORWARDED_FOR'))
        $ipaddress = getenv('HTTP_FORWARDED_FOR');
    else if(getenv('HTTP_FORWARDED'))
       $ipaddress = getenv('HTTP_FORWARDED');
    else if(getenv('REMOTE_ADDR'))
        $ipaddress = getenv('REMOTE_ADDR');
    else
        $ipaddress = 'UNKNOWN';
    return $ipaddress;
}