/**
* Updates the amount of terms (count) in taxonomy (category).
*
* @see https://wpcodebook.com/wordpress-update-count-all-categories/
* @see https://developer.wordpress.org/reference/functions/wp_update_term_count/
*
* @return bool
*/
function wpcodebook_update_categories_count() {
$taxonomy = 'category';
$terms = get_terms( array(
'taxonomy' => $taxonomy,
'hide_empty' => false,
) );
$term_ids = (
! empty( $terms ) && ! is_wp_error( $terms ) ?
wp_list_pluck( $terms, 'term_id' ) :
array()
);
return wp_update_term_count( $term_ids, $taxonomy );
}