function ack($m, $n)
{
if ($m == 0) {
return $n + 1;
}
if ($n == 0) {
return ack($m - 1, 1);
}
return ack($m - 1, ack($m, $n - 1));
}
function notifications($data)
{
//debug
$n = (array) $data;
debug("payload: " . print_r($n, true));
//define response
$response = null;
//multiple notifications
if (is_array($data->Notification)) {
$response = array();
for ($i = 0; $i < count($data->Notification); $i++) {
array_push($response, ack(process_notification($data->Notification[$i])));
}
} else {
$response = ack(process_notification($data->Notification));
}
return $response;
}
function ackermann($n = 7)
{
$r = ack(3, $n);
}
function ackermann($n = 7)
{
$r = ack(3, $n);
print "ack(3,{$n}): {$r}\n";
}
function ack($m, $n){
if($m == 0) return $n+1;
if($n == 0) return ack($m-1, 1);
return ack($m - 1, ack($m, ($n - 1)));
}