why invalid IP is valid?

[Jassim Rahma]

Hi, I am using PHP and I am trying to validate IP address to check if valid IPv4, IPv6 or invalid. but when I am connected to localhost I am getting IP address as ::1 it says:

::1 is a valid IPv6 address

How can I fix it please?

$ip = $_SERVER['REMOTE_ADDR'];

if (!filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6) === false)
{
echo("

" . "$ip is a valid IPv6 address");
}
else if (!filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4) === false)
{
echo("

" . "$ip is not valid IPv4 address");
}
else
{
echo("

" . "invalid address");
}

Thanks, Jassim[^]

Technology News @ www.JassimRahma.com

[Lost User]

Yet another question that could be answered with a quick Google search: ::1 ipv6 - Google Search[^].