WordPress: good breadcrumb example

breadcrumbs.php

<!-- BREADCRUMB -->
<?php if( function_exists('the_breadcrumbs') ) { ?>
<ol class='breadcrumb '>
    <?php the_breadcrumbs(); ?>
</ol>
<?php } ?>
<!-- // BREADCRUMB -->

wordpress_breadcrumbs.php

function the_breadcrumbs() {

     global $post;
     global $wp_query;

     if ( ! is_home() ) {

          echo "<li><a href='http://website.com/'>WebSite</a></li>";
          echo "<li><a href='";
          echo get_option('home');
          echo "'>";
          echo bloginfo('name');
          echo "</a></li>";

          if (is_category() || is_single()) {

               //echo "<li>";
               $cats = get_the_category( $post->ID );
               //echo "</li>";

               foreach ( $cats as $cat ){

                    //var_dump($cat);
                    echo "<li>";
                    echo "<a href='".get_category_link($cat->term_id)."'>".$cat->cat_name."</a>";
                    echo "</li>";

               }
               if ( is_single()) {

                    echo "<li>";
                    the_title();
                    echo "</li>";

               }
          } elseif (is_page()) {

              
               $post = $wp_query->get_queried_object();

               if ( $post->post_parent == 0 ){

                    echo "<li>  ".the_title('','', FALSE)."</li>";

               } else {
                    $title = the_title('','', FALSE);
                    $ancestors = array_reverse( get_post_ancestors( $post->ID ) );
                    array_push($ancestors, $post->ID);

                    foreach ( $ancestors as $ancestor ){
                         if( $ancestor != end($ancestors) ){
                              echo '<li><a href="'. get_permalink($ancestor) .'">'. strip_tags( apply_filters( 'single_post_title', get_the_title( $ancestor ) ) ) .'</a></li>';
                         } else {
                              echo '<li>'. strip_tags( apply_filters( 'single_post_title', get_the_title( $ancestor ) ) ) .'</li>';
                         }
                    }
               }




          }
     }
     elseif (is_tag()) { single_tag_title(); }
     elseif (is_day()) { echo"Archive: "; the_time('F jS, Y'); echo'</li>';}
     elseif (is_month()) { echo"Archive: "; the_time('F, Y'); echo'</li>';}
     elseif (is_year()) { echo"Archive: "; the_time('Y'); echo'</li>';}
     elseif (is_author()) { echo"Author's archive: "; echo'</li>';}
     elseif (isset($_GET['paged']) && !empty($_GET['paged'])) {echo "Blogarchive: "; echo'';}
     elseif (is_search()) { echo"Search results: "; }
}