내 아이피 출력 코드

<?php
function getClientIP() {
    $ipaddress = '';
    if (isset($_SERVER['HTTP_CLIENT_IP']) && !empty($_SERVER['HTTP_CLIENT_IP'])) {
        $ipaddress = $_SERVER['HTTP_CLIENT_IP'];
    } elseif (isset($_SERVER['HTTP_X_FORWARDED_FOR']) && !empty($_SERVER['HTTP_X_FORWARDED_FOR'])) {
        $ipaddress = $_SERVER['HTTP_X_FORWARDED_FOR'];
    } elseif (isset($_SERVER['HTTP_X_FORWARDED']) && !empty($_SERVER['HTTP_X_FORWARDED'])) {
        $ipaddress = $_SERVER['HTTP_X_FORWARDED'];
    } elseif (isset($_SERVER['HTTP_X_CLUSTER_CLIENT_IP']) && !empty($_SERVER['HTTP_X_CLUSTER_CLIENT_IP'])) {
        $ipaddress = $_SERVER['HTTP_X_CLUSTER_CLIENT_IP'];
    } elseif (isset($_SERVER['HTTP_FORWARDED_FOR']) && !empty($_SERVER['HTTP_FORWARDED_FOR'])) {
        $ipaddress = $_SERVER['HTTP_FORWARDED_FOR'];
    } elseif (isset($_SERVER['HTTP_FORWARDED']) && !empty($_SERVER['HTTP_FORWARDED'])) {
        $ipaddress = $_SERVER['HTTP_FORWARDED'];
    } elseif (isset($_SERVER['REMOTE_ADDR']) && !empty($_SERVER['REMOTE_ADDR'])) {
        $ipaddress = $_SERVER['REMOTE_ADDR'];
    } else {
        $ipaddress = 'UNKNOWN';
    }
    return $ipaddress;
}


$clientIP = getClientIP();
echo "Client IP Address: " . $clientIP;
?>

현재 접속자의 위치 출력