In Ipv4 we can use ip2long
to convert it to number,
How to convert ipv6 compressed to number in PHP?
I tried inet_pton and it's not working.
$ip_1='2001:0db8:85a3:0000:0000:8a2e:0370:7334';
$ip_2='2001:11ff:ffff:f';//Compressed
echo inet_pton($ip_1);
//OUTPUT ИЃ.ps4
echo inet_pton($ip_2);
//OUTPUT Warning: inet_pton(): Unrecognized address 2001:11ff:ffff:f
$ip = 'fe80:0:0:0:202:b3ff:fe1e:8329';
$dec = ip2long_v6($ip);
$ip2 = long2ip_v6($dec);
// $ip = fe80:0:0:0:202:b3ff:fe1e:8329
// $dec = 338288524927261089654163772891438416681
// $ip2 = fe80::202:b3ff:fe1e:8329
With enabled GMP or BCMATH extension.
function ip2long_v6($ip) {
$ip_n = inet_pton($ip);
$bin = '';
for ($bit = strlen($ip_n) - 1; $bit >= 0; $bit--) {
$bin = sprintf('%08b', ord($ip_n[$bit])) . $bin;
}
if (function_exists('gmp_init')) {
return gmp_strval(gmp_init($bin, 2), 10);
} elseif (function_exists('bcadd')) {
$dec = '0';
for ($i = 0; $i < strlen($bin); $i++) {
$dec = bcmul($dec, '2', 0);
$dec = bcadd($dec, $bin[$i], 0);
}
return $dec;
} else {
trigger_error('GMP or BCMATH extension not installed!', E_USER_ERROR);
}
}
function long2ip_v6($dec) {
if (function_exists('gmp_init')) {
$bin = gmp_strval(gmp_init($dec, 10), 2);
} elseif (function_exists('bcadd')) {
$bin = '';
do {
$bin = bcmod($dec, '2') . $bin;
$dec = bcdiv($dec, '2', 0);
} while (bccomp($dec, '0'));
} else {
trigger_error('GMP or BCMATH extension not installed!', E_USER_ERROR);
}
$bin = str_pad($bin, 128, '0', STR_PAD_LEFT);
$ip = array();
for ($bit = 0; $bit <= 7; $bit++) {
$bin_part = substr($bin, $bit * 16, 16);
$ip[] = dechex(bindec($bin_part));
}
$ip = implode(':', $ip);
return inet_ntop(inet_pton($ip));
}
demo
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