13.12.2006, 09:37
общий
это ответ
Здравствуйте, Php23!
Если я Вас правильно понял...
сорри за ингл. язык брал из справки.
Приложение:
ip2long(PHP 4 )ip2long -- Converts a string containing an (IPv4) Internet Protocol dotted address into a proper address. Descriptionint ip2long ( string ip_address)The function ip2long() generates an IPv4 Internet network address from its Internet standard format (dotted string) representation. If ip_address is invalid than -1 is returned. Note that -1 does not evaluate as FALSE in PHP. Пример 1. ip2long() Example<?php$ip = gethostbyname("www.example.com");$out = "The following URLs are equivalent:
\n";$out .= "http://www.example.com/, http://" . $ip . "/, and http://" . sprintf("%u", ip2long($ip)) . "/
\n";echo $out;?> Замечание: Because PHP‘s integer type is signed, and many IP addresses will result in negative integers, you need to use the "%u" formatter of sprintf() or printf() to get the string representation of the unsigned IP address. This second example shows how to print a converted address with the printf() function : Пример 2. Displaying an IP address<?php$ip = gethostbyname("www.example.com");$long = ip2long($ip);if ($long === -1) { echo "Invalid IP, please try again";} else { echo $ip . "\n"; // 192.0.34.166 echo $long . "\n"; // -1073732954 printf("%u\n", ip2long($ip)); // 3221234342}?> Замечание: ip2long() will return -1 for the ip 255.255.255.255