note 71939 added to function.ip2long

NOTE: ip2long() should NOT be used for CIDR calculation. Instead, you should use something like the following: <?php /* get the base and the bits from the ban in the database */ list($base, $bits) = explode('/', $CIDR); /* now split it up into it's classes */ list($a, $b, $c, $d) = explode('.', $base); /* now do some bit shfiting/switching to convert to ints */ $i = ($a << 24) + ($b << 16) + ($c << 8) + $d; $mask = $bits == 0 ? 0 : (~0 << (32 - $bits)); /* here's our lowest int */ $low = $i & $mask; /* here's our highest int */ $high = $i | (~$mask & 0xFFFFFFFF); /* now split the ip were checking against up into classes */ list($a, $b, $c, $d) = explode('.', $iptocheck); /* now convert the ip we're checking against to an int */ $check = ($a << 24) + ($b << 16) + ($c << 8) + $d; /* if the ip is within the range, including highest/lowest values, then it's witin the CIDR range */ if ($check >= $low && $check <= $high) return 1; else return 0; ?> This means that you should check to see if the IP address is of the correct format each time. ---- Server IP: 85.116.0.130 Probable Submitter: 86.1.184.177 ---- Manual Page -- http://www.php.net/manual/en/function.ip2long.php Edit -- https://master.php.net/note/edit/71939 Del: integrated -- https://master.php.net/note/delete/71939/integrated Del: useless -- https://master.php.net/note/delete/71939/useless Del: bad code -- https://master.php.net/note/delete/71939/bad+code Del: spam -- https://master.php.net/note/delete/71939/spam Del: non-english -- https://master.php.net/note/delete/71939/non-english Del: in docs -- https://master.php.net/note/delete/71939/in+docs Del: other reasons-- https://master.php.net/note/delete/71939 Reject -- https://master.php.net/note/reject/71939 Search -- https://master.php.net/manage/user-notes.php