Hi, On Thu, Nov 6, 2014 at 8:19 AM, Kévin Dunglas <dung...@gmail.com> wrote: > Hi Andrey, > > Sorry but I think you're wrong. Domain != hostname. Underscore are allowed > in domains (RFC 2181) but not in hostnames (RFC 1123 and next). To quote > Wikipedia: > > "While a hostname may not contain other characters, such as the underscore > character (_), other DNS names may contain the underscore. Systems such > asDomainKeys and service records use the underscore as a means to assure > that their special character is not confused with hostnames. For > example,_http._sctp.www.example.com specifies a service pointer for an SCTP > capable webserver host (www) in the domain example.com." > http://en.wikipedia.org/wiki/Hostname#Restrictions_on_valid_host_names > > You can also see this StackOverflow answer > http://stackoverflow.com/a/2183140/1352334
I agree to an extent, but that is highly contextual. Who said that 'domain' === 'DNS record' (which is a very broad term anyway)? And IF we assume this, why do you need FILTER_VALIDATE_DOMAIN for it if it's only going to check length? Cheers, Andrey. -- PHP Internals - PHP Runtime Development Mailing List To unsubscribe, visit: http://www.php.net/unsub.php
