Pass custom value to custom taxonomy
have you tried building your tag array into a variable and passing that as a parameter to set_post_terms? function add_author_taxonomy( $post_id ) { global $wpdb; if(!wp_is_post_revision($post_ID)) { $my_tags = get_post_meta($post_id, ‘user_submit_customauthor’, true); wp_set_post_terms( $post_id, $my_tags, ‘author’, true ); } } add_action(‘publish_page’, ‘add_author_taxonomy’); add_action(‘publish_post’, ‘add_author_taxonomy’) ;