note 74264 added to function.ip2long

I wrote a small function to validate a netmask (We have a form where the netmask of a given server is entered in, and I wanted to make sure it was valid). Hope this is useful. // Netmask Validator // function checkNetmask($ip) { if (!ip2long($ip)) { return false; } elseif(strlen(decbin(ip2long($ip))) != 32 && ip2long($ip) != 0) { return false; } elseif(ereg('01',decbin(ip2long($ip))) || !ereg('0',decbin(ip2long($ip)))) { return false; } else { return true; } } ---- Server IP: 216.194.113.175 Probable Submitter: 204.124.92.254 ---- Manual Page -- http://www.php.net/manual/en/function.ip2long.php Edit -- https://master.php.net/note/edit/74264 Del: integrated -- https://master.php.net/note/delete/74264/integrated Del: useless -- https://master.php.net/note/delete/74264/useless Del: bad code -- https://master.php.net/note/delete/74264/bad+code Del: spam -- https://master.php.net/note/delete/74264/spam Del: non-english -- https://master.php.net/note/delete/74264/non-english Del: in docs -- https://master.php.net/note/delete/74264/in+docs Del: other reasons-- https://master.php.net/note/delete/74264 Reject -- https://master.php.net/note/reject/74264 Search -- https://master.php.net/manage/user-notes.php