if( !gethostbyaddr($_SERVER['REMOTE_ADDR']) ||
gethostbyaddr($_SERVER['REMOTE_ADDR']) == "." ||
!$_SERVER['HTTP_ACCEPT_ENCODING'] ||
$_SERVER['HTTP_X_FORWARDED_FOR'] ||
$_SERVER['HTTP_X_FORWARDED'] ||
$_SERVER['HTTP_FORWARDED_FOR'] ||
$_SERVER['HTTP_VIA'] ||
$_SERVER['HTTP_FORWARDED'] ||
$_SERVER['HTTP_CLIENT_IP'] ||
$_SERVER['HTTP_FORWARDED_FOR_IP'] ||
$_SERVER['VIA'] ||
$_SERVER['X_FORWARDED_FOR'] ||
$_SERVER['FORWARDED_FOR'] ||
$_SERVER['X_FORWARDED FORWARDED'] ||
$_SERVER['CLIENT_IP'] ||
$_SERVER['FORWARDED_FOR_IP'] ||
$_SERVER['HTTP_PROXY_CONNECTION'] ||
in_array($_SERVER['REMOTE_PORT'], array(8080,80,6588,8000,3128,553,554)) ||
@fsockopen($_SERVER['REMOTE_ADDR'], 80, $errno, $errstr, 0) ||
!$_SERVER['HTTP_CONNECTION'] ) {
echo 'Blocked.';
} else {
echo 'Legit.';
}