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<?php
// fill in with network addresses in CIDR notation:
$bans = array(
'xxx.xxx.xxx.xxx/yy'
);
function checkban($ipstring) {
global $bans;
$ip = ip2long($ipstring);
foreach ($bans as $ban) {
$parts = split("/", $ban, 2);
$net = ip2long($parts[0]);
$cidr = (int)$parts[1];
if (($net >> $cidr) == ($ip >> $cidr))
return true;
}
return false;
}
if (checkban($_SERVER['REMOTE_ADDR'])) {
// BANNED USER
}
else {
// NORMAL USER
}
?>
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