This filter is applied within the bcn_breadcrumb class in the set_title member function before setting the internal $title property. In 4.2 the title string passed to filtering functions is accompanied by the internal type array to provide context. In 4.4 the third parameter was added. It receives three parameters:
- $title – (string)(required) The title that is being set for the breadcrumb
- $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 no suitable ID exists