get list of categoris from a specific post with get_term()

Question

I want to get a list of categories from a post. and them hide a specific category with all child

    $args = array(
                            'orderby' => 'term_order',
                            'exclude_tree' => array('vip'),
                            'fields' => array('names', 'slugs'),
                            'term_id' => $current_post_id,
                            'taxonomy' => 'category',                        
                             );

                            $terms = get_terms($args);

                            var_dump($terms);

but I got a null array. I know I have a stupid problem. because I am new to WordPress

UPDATE: my problem is about to add 'taxonomy' => 'category' and give a integer to exclude_tree

right now I correct my code and its work but I have a problem with that

                    $args = array(
                        'orderby' => 'term_order',
                         'exclude_tree' => [2621],
                        'fields' => 'names',
                    );

                    try {

                        $terms = wp_get_post_categories($current_post_id,$args);

It seems 'fields' just get one string. I want to get the name of the category with their link.

Answer 1

Add the taxonomy name (or array of names) to your $args array - you can refer to the list of available args at https://developer.wordpress.org/reference/classes/wp_term_query/__construct/ but you'll want something like

'taxonomy' => 'category',

or similar.