(PHP 5 >= 5.1.0)
inet_pton — Converts a human readable IP address to its packed in_addr representation
This function converts a human readable IPv4 or IPv6 address (if PHP was built with IPv6 support enabled) into an address family appropriate 32bit or 128bit binary structure.
A human readable IPv4 or IPv6 address.
Returns the in_addr representation of the given address
Example#1 inet_pton() Example
<?php
$in_addr = inet_pton('127.0.0.1');
$in6_addr = inet_pton('::1');
?>
Note: Для Windows-платформ эта функция не реализована.