在PHP中使用IPv6地址

$ipv6_binary = inet_pton('2001:0db8:85a3:0000:0000:8a2e:0370:7334');
$ipv6_string = inet_ntop($ipv6_binary);
echo $ipv6_string; // 输出：2001:db8:85a3::8a2e:370:7334

$ipv6_string = '2001:0db8:85a3:0000:0000:8a2e:0370:7334';
$ipv6_binary = inet_pton($ipv6_string);
echo $ipv6_binary; // 输出：binary_ipv6_address

$ipv6_address = '2001:0db8:85a3:0000:0000:8a2e:0370:7334';
if (filter_var($ipv6_address, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6)) {
    echo "This is a valid IPv6 address.";
} else {
    echo "This is not a valid IPv6 address.";
}