wordpress taxonomy breadcrumb with taxonomy hierarchy

wp_tax_breadcrumbs.php

} else if ( is_tax() ) {
					$term = get_term_by( 'slug', get_query_var( 'term' ), get_query_var( 'taxonomy' ) );

					// Create a list of all the term's parents
					$parent = $term->parent;
					while ( $parent ):
						$parents[] = $parent;
					$new_parent = get_term_by( 'id', $parent, get_query_var( 'taxonomy' ) );
					$parent = $new_parent->parent;
					endwhile;
					if ( !empty( $parents ) ):
						$parents = array_reverse( $parents );

					// For each parent, create a breadcrumb item
					foreach ( $parents as $parent ):
						$item = get_term_by( 'id', $parent, get_query_var( 'taxonomy' ) );
					$url = get_bloginfo( 'url' ).'/'.$item->taxonomy.'/'.$item->slug.'/';
					$output .= '<a href="'.$url.'">'.$item->name.'</a>'.$opt['sep'];

					endforeach;
					endif;


					$output .= bold_or_not( $term->name, $bold );