note 83417 added to function.gethostbyname
| From: | manalejandroatgmaildotcom at osu1 dot php dot net | Date: | Sun, 25 May 2008 03:59:42 +0000 |
| Subject: | note 83417 added to function.gethostbyname | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-139718@lists.php.net to get a copy of this message | ||
This logic solution to problem checking dns reverse name resolution:
<?php
$ip = gethostbyname($host);
if(ip2long($ip) == -1 || ($ip == gethostbyaddr($ip) &&
preg_match("/.*\.[a-zA-Z]{2,3}$/",$host) == 0) ) {
echo 'Error, incorrect host or ip';
}
else {
echo 'Ok';
}
?>
----
Server IP: 130.206.1.5
Probable Submitter: 85.136.135.153
----
Manual Page -- http://www.php.net/manual/en/function.gethostbyname.php
Edit -- https://master.php.net/note/edit/83417
Del: integrated -- https://master.php.net/note/delete/83417/integrated
Del: useless -- https://master.php.net/note/delete/83417/useless
Del: bad code -- https://master.php.net/note/delete/83417/bad+code
Del: spam -- https://master.php.net/note/delete/83417/spam
Del: non-english -- https://master.php.net/note/delete/83417/non-english
Del: in docs -- https://master.php.net/note/delete/83417/in+docs
Del: other reasons-- https://master.php.net/note/delete/83417
Reject -- https://master.php.net/note/reject/83417
Search -- https://master.php.net/manage/user-notes.php