function deny()
{
if (!file_exists('blocked_ips.txt')) {
$deny_ips = array(
'127.0.0.1',
'192.168.1.1',
'83.76.27.9',
'192.168.1.163'
);
} else {
$deny_ips = file('blocked_ips.txt');
}
// read user ip adress:
$ip = isset($_SERVER['REMOTE_ADDR']) ? trim($_SERVER['REMOTE_ADDR']) : '';
// search current IP in $deny_ips arrayif
if ((array_search($ip, $deny_ips)) !== FALSE) {
// address is blocked:
echo 'Your IP adress (' . $ip . ') was blocked!';
exit;
}
}