note 70408 added to function.gethostbyname

mmucklo raises a valid point, however the function to use would be getmxrr() in the simplest case, or alternatively checkdnsrr() if you so wish; getdnsrr() does not exist. On another note, it can be a pain (when iterating with while loops for example) that on failure gethostbyname() returns the hostname, rather than FALSE. You could wrap it in a simple user function, to "correct" this: <?php function fixed_gethostbyname ($host) { // Try the lookup as normal... $ip = gethostbyname($host); // ...but if it fails, FALSE is returned instead of the unresolved host if ($ip != $host) { return $ip; } else return false; } ?> ---- Server IP: 85.116.0.130 Probable Submitter: 172.209.61.203 ---- Manual Page -- http://www.php.net/manual/en/function.gethostbyname.php Edit -- https://master.php.net/note/edit/70408 Del: integrated -- https://master.php.net/note/delete/70408/integrated Del: useless -- https://master.php.net/note/delete/70408/useless Del: bad code -- https://master.php.net/note/delete/70408/bad+code Del: spam -- https://master.php.net/note/delete/70408/spam Del: non-english -- https://master.php.net/note/delete/70408/non-english Del: in docs -- https://master.php.net/note/delete/70408/in+docs Del: other reasons-- https://master.php.net/note/delete/70408 Reject -- https://master.php.net/note/reject/70408 Search -- https://master.php.net/manage/user-notes.php