Paste the functions.php code in your function file and call that function where you want to display breadcrumb.
This function updated and now supported to custom taxonomy, custom post type and parent/child pages. Also updated archive (day, month, year) part
This function is not yet supported to WooCommerce or any other specific plugin. It just based on default WordPress pages like Single, Archive, Search, 404 or Page.
This function also check the parent and child category and display it like below.
Parent Category > Child Category > SubChild Category ...