Can't update or delete dynamically with twig and php oop

Question

I\'m learning php oop and I\'m going crazy with this ...

I want to update my database with a form in my website.

I create my model like this :

Answer 1

Just adding the ID in my Post object and everything is back in order

  $post = new Post([
  'id' => $_POST['id'],
  'title' => $_POST['title'],
  'header' => $_POST['header'],
  'author' => $_POST['author'],
  'date' => date("Y-m-d H:i:s"),
  'content' => $_POST['content'],
  'featuredImg' => $image
]);