Regular expression for validating an ip address ,in ipv6 format

Question

Possible Duplicate:
Regular expression that matches valid IPv6 addresses

Can any one know the regular expression

for validating an ip address ,in ipv6 format

Not really a duplicate, because this question is about PHP and older question doesn't answer this problem in PHP — Ivan Nevostruev, Jun 09 '11 at 18:45

score 3 · Answer 1 · answered Jun 09 '11 at 18:26

3

If regex is not a solid requirement (I don't recommend it here), then:

if(filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6)) {
  // valid
}
else {
  // invalid
}

answered Jun 09 '11 at 18:26

John Cartwright

score 3 · Accepted Answer · answered Jun 09 '11 at 18:26

3

Try:

$ipv6="2a01:e35:aaa4:6860:a5e7:5ba9:965e:cc93";
var_dump(filter_var($ipv6,FILTER_VALIDATE_IP, FILTER_FLAG_IPV6));

answered Jun 09 '11 at 18:26

Pwnna

score 0 · Answer 3 · answered Jun 09 '11 at 18:29

0

You can try to use Net_IPv6, with the function checkIPv6().

If you want to accept IPv4 and IPv6, try to use the function filter_var():

$valid = filter_var($ip, FILTER_VALIDATE_IP);

answered Jun 09 '11 at 18:29

fvox

1

If you want the regex solution, it can be found within Net_IPv6's source. – Kevin Mark Jun 09 '11 at 18:54

3 Answers3