note 62365 added to function.gethostbyaddr

While writing a script to verify IP<->hostname loops, I sorely missed the "list" version of gethostbyaddr (similar to gethostbynamel()) and since dns_get_record is a bit too complex for that task alone, I've written a simple wrapper that should behave like gethostbynamel(): function gethostbyaddrl($ip) { $rrs=dns_get_record(implode('.',array_reverse(explode('.', $ip))).'.in-addr.arpa.',DNS_PTR); $revnames=array(); foreach($rrs as $rr) $revnames[]=$rr['target']; return (count($revnames)) ? $revnames : FALSE; } Hopefully it'll be of use to someone else, too. ---- Server IP: 195.136.184.34 Probable Submitter: 80.55.44.166 (proxied: 192.168.2.15) ---- X-Spam-Status: No, hits=3.1 required=5.0 tests=DATE_MISSING,FROM_NO_LOWER autolearn=no version=2.64 ---- Manual Page -- http://www.php.net/manual/en/function.gethostbyaddr.php Edit -- http://master.php.net/note/edit/62365 Del: integrated -- http://master.php.net/note/delete/62365/integrated Del: useless -- http://master.php.net/note/delete/62365/useless Del: bad code -- http://master.php.net/note/delete/62365/bad+code Del: spam -- http://master.php.net/note/delete/62365/spam Del: non-english -- http://master.php.net/note/delete/62365/non-english Del: in docs -- http://master.php.net/note/delete/62365/in+docs Del: other reasons-- http://master.php.net/note/delete/62365 Reject -- http://master.php.net/note/reject/62365 Search -- http://master.php.net/manage/user-notes.php