how IP address record?

[Manpasand]

Is there a way to record the IP address of users? I would like to be able to verify the geographic location of a users.

[imlsuccess]

it depends what you have got on your server
if you are using PHP the array element $_SERVER['REMOTE_ADDR'] contains The IP address from which the user is viewing the current page.

[Manpasand]

I am using html and cgi mail for form processing.

[DMacedo]

Here's a complete PHP function to return the correct user IP address:

function return_user_ip()
{
    $ip = FALSE;

    if (!empty($_SERVER['HTTP_CLIENT_IP']))
    {
        $ip = $_SERVER['HTTP_CLIENT_IP'];
    }

    if (!empty($_SERVER['HTTP_X_FORWARDED_FOR']))
    {
        $ips = explode (', ', $_SERVER['HTTP_X_FORWARDED_FOR']);

        if ($ip)
        {
            array_unshift($ips, $ip);
            $ip = FALSE;
        }

        for ($i = 0; $i < count($ips); $i++)
        {
            $long = ip2long($ips[$i]);
            // RFC1918 (10.0.0.0/8, 192.168.0.0/16 and 172.16.0.0/12)
            if (!preg_match('^(10|192\.168)\.', $ips[$i]) AND 
                !($long >= -1408237568 AND $long <= -1407188993))
            {
                if (version_compare(phpversion(), '5.0.0', '>='))
                {
                    if ($long != false)
                    {
                        $ip = $ips[$i];
                        break;
                    }
                }
                else
                {
                    if ($long != -1)
                    {
                        $ip = $ips[$i];
                        break;
                    }
                }
            }
        }
    }

    return ($ip) ? $ip : $_SERVER['REMOTE_ADDR'];
} 

To use it:

$user_ip = return_user_ip(); 

After you have the IP address, check it against a geo-location database like ip-to-country.com and you're all set

[DMacedo]

I am using html and cgi mail for form processing.

You can have an .htaccess to allow you to execute PHP inside the .cgi or even .html

Just place:

AddType application/x-httpd-php .cgi

in your .htaccess and in the .cgi you can now use the code above

This assumes you're using Apache and your host has PHP installed

[Manpasand]

Thanks for your kind help.