This filter is applied within the bcn_breadcrumb_trail_multidim and bcn_breadcrumb_trail_multidim_children classes in the term_parents() and do_archive_by_term() functions. This filter was introduced in version 2.0 with three parameters. It receives three parameters:

  • $args(string)(required) The argument string to be sent into wp_list_categories to generate the second dimension of the trail
  • $id(id)(optional) The ID of the term this breadcrumb is for
  • $taxonomy(string)(optional) The name of the taxonomy the term belongs to