Change order status to complete in magento

gistfile1.txt

require 'app/Mage.php';
Mage::app();

$order = Mage::getModel('sales/order')->loadByIncrementId('2323233');
$order->setData('state', "complete");
$order->setStatus("complete");
$history = $order->addStatusHistoryComment('Order was set to Complete by SomethingDigital on 9/19.', false);
$history->setIsCustomerNotified(false);
$order->save();
print_r("done processing");