Get IP Address

getIp.php

<?php

/**
 * Get current user's IP address
 *
 * @return string
 * @access public
 */
function getIp()
{
    $userIp = '';
    
    if (getenv('HTTP_CLIENT_IP')) {
        $userIp = getenv('HTTP_CLIENT_IP');
    } else if (getenv('HTTP_X_FORWARDED_FOR')) {
        $userIp = getenv('HTTP_X_FORWARDED_FOR');
    } else if (getenv('REMOTE_ADDR')) {
        $userIp = getenv('REMOTE_ADDR');
    }

    return $userIp;
}