{}的问题

Question

if (Request::ajax())
        {
            $orderItemData = Input::except('_method', '_token');

            if (array_key_exists('registered_no', $orderItemData))
            **{**
            $orderItemData['status'] = ($orderItemData['registered_no'] != '' ? 'arrived' : null);

            OrderItem::where('id', $orderItemId)->update($orderItemData);

            return Response::json(array('success' => 1, 'data' => $orderItemData));
            **}**

        }

This code works fine without the { } i bold above. Any idea why ? I'm trying to do a elseif but i cant because i cant put the { } the code will fail(It doesn't response)

Answer 1

This:

if (condition)
    action
    anotherAction

will run anotherAction even if condition was false. But:

if (condition)
{
    action
    anotherAction
}

will not run either of the actions if condition was false. It is up to you which actions you want executed - include them in the { .. } block and leave the rest out.