Where to read the visitor info

Question

UPDATE:

This question exposed the obsolete, worst approach for visitors count and it should be avoided by everyone out there. Use sophis

Answer 1

Hi this is what i am using to register visitors ip.

function get_IP() {

    // ADRES IP
    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;
}