How to enter correctly in php?

Question

WordPress

Good day, the question is about WordPress
As I understand it, this line excludes the current open post in WordPress. And how to add more specific posts to it that should not be displayed? For example, with id 12 and 17.
'post__not_in' => array($post->ID),

Answer 1

'post__not_in' => array($post->ID, 12, 17),
mb so)