Custom Post Type without author

I'm inserting information into a new post, and when I use var_dump, I don't see no author ID, and because of that, I can't retrieve it later. ``` global $user_ID; $new_post = array( 'post_title' => $_POST['titulo_necessidade'], 'post_content' => $_POST['conteudo_necessidade'], 'post_status' => 'publish', 'post_date' => date('Y-m-d H:i:s'), 'post_author' => $user_ID, 'post_type' => 'necessidade', 'post_category' => array(0) ); $post_id = wp_insert_post($new_post); var_dump(get_post_meta($post_id)); ``` The result I get is the following array(3) { ["titulo_necessidade"]=> array(1) { [0]=> string(7) "tyktyuk" } ["conteudo_necessidade"]=> array(1) { [0]=> string(7) "tkyutut" } ["submit_necessidade"]=> array(1) { [0]=> string(6) "Enviar" } }