This filter is applied within the bcn_breadcrumb_trail class in the display_loop() function. This filter was introduced in version 6.3 to be an easier to use version of bcn_display_attributes. It receives three parameters:

  • $attribute_array(array)(required) A key-value pair array of the attributes placed in the li tag that wraps the each breadcrumb. Keys are attribute names, values is an array of values for the attribute
  • $type(array)(optional) The array of type strings for the breadcrumb
  • $id(int|NULL)(optional) The ID of the resource represented by the breadcrumb, will be NULL if not suitable ID exists