function getip()
{
    if (getenv('HTTP_CLIENT_IP'))
    {
    $ip = getenv('HTTP_CLIENT_IP');
    }
    elseif (getenv('HTTP_X_FORWARDED_FOR'))
    {
    $ip = getenv('HTTP_X_FORWARDED_FOR');
    }
    elseif (getenv('HTTP_X_FORWARDED'))
    {
    $ip = getenv('HTTP_X_FORWARDED');
    }
    elseif (getenv('HTTP_FORWARDED_FOR'))
    {
    $ip = getenv('HTTP_FORWARDED_FOR');
    }
    elseif (getenv('HTTP_FORWARDED'))
    {
    $ip = getenv('HTTP_FORWARDED');
    }
    else
    {
    $ip = $_SERVER['REMOTE_ADDR'];
    }
    return $ip;
}

function getip()
{
static $ip = '';
$ip = $_SERVER['REMOTE_ADDR'];
if(isset($_SERVER['HTTP_CDN_SRC_IP']))
{
$ip = $_SERVER['HTTP_CDN_SRC_IP'];
}
elseif (isset($_SERVER['HTTP_CLIENT_IP']) && preg_match('/^([0-9]{1,3}\.){3}[0-9]{1,3}$/', $_SERVER['HTTP_CLIENT_IP']))
{
$ip = $_SERVER['HTTP_CLIENT_IP'];
}
elseif(isset($_SERVER['HTTP_X_FORWARDED_FOR']) AND preg_match_all('#\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}#s', $_SERVER['HTTP_X_FORWARDED_FOR'], $matches))
{
    foreach ($matches[0] AS $xip)
    {
        if (!preg_match('#^(10|172\.16|192\.168)\.#', $xip))
        {
        $ip = $xip;
        break;
        }
    }
}
return $ip;
}