Breadcrumbs

Features of my version of WordPress breadcrumbs

  • Displays a full chain of linksto the current page. For example, if the current post is in a second level category, so breadcrumbs will looks like this:Home » Category » Subcategory » Post TitleBut all, what I have seen, displays only such an option (excluding plugins):

    Home » Subcategory » Post Title

    The same applies to pages and subpages. For example, for a 3rd level page breadcrumbs will looks like this:

    Home » Page Level 1 » Page Level 2 » Page Level 3

  • Breadcrumbs is appearing on a following types of WordPress pages:
    • paged navigation (like sitename.com/page/2/);
    • category archive;
    • tag archive;
    • daily archive;
    • monthly archive;
    • yearly archive;
    • author archive;
    • single post page;
    • single page;
    • attachment page;
    • search results;
    • 404 error page.
  • adding a page number (if archive page is second or more);
  • custom symbol of delimiter;
  • custom text for a ‘Home’ link;
  • current crumb styling.

WordPress breadcrumbs function (last updated: 03.31.2012)

function custom_breadcrumbs() {

  $showOnHome = 0; // 1 - show breadcrumbs on the homepage, 0 - don't show
  $delimiter = '»'; // delimiter between crumbs
  $home = 'Home'; // text for the 'Home' link
  $showCurrent = 1; // 1 - show current post/page title in breadcrumbs, 0 - don't show
  $before = '<span>'; // tag before the current crumb
  $after = '</span>'; // tag after the current crumb

  global $post;
  $homeLink = get_bloginfo('url');

  if (is_home() || is_front_page()) {

    if ($showOnHome == 1) echo '<div id="crumbs"><a href="' . $homeLink . '">' . $home . '</a></div>';

  } else {

    echo '<div id="crumbs"><a href="' . $homeLink . '">' . $home . '</a> ' . $delimiter . ' ';

    if ( is_category() ) {
      global $wp_query;
      $cat_obj = $wp_query->get_queried_object();
      $thisCat = $cat_obj->term_id;
      $thisCat = get_category($thisCat);
      $parentCat = get_category($thisCat->parent);
      if ($thisCat->parent != 0) echo(get_category_parents($parentCat, TRUE, ' ' . $delimiter . ' '));
      echo $before . 'Archive by category "' . single_cat_title('', false) . '"' . $after;

    } elseif ( is_search() ) {
      echo $before . 'Search results for "' . get_search_query() . '"' . $after;

    } elseif ( is_day() ) {
      echo '<a href="' . get_year_link(get_the_time('Y')) . '">' . get_the_time('Y') . '</a> ' . $delimiter . ' ';
      echo '<a href="' . get_month_link(get_the_time('Y'),get_the_time('m')) . '">' . get_the_time('F') . '</a> ' . $delimiter . ' ';
      echo $before . get_the_time('d') . $after;

    } elseif ( is_month() ) {
      echo '<a href="' . get_year_link(get_the_time('Y')) . '">' . get_the_time('Y') . '</a> ' . $delimiter . ' ';
      echo $before . get_the_time('F') . $after;

    } elseif ( is_year() ) {
      echo $before . get_the_time('Y') . $after;

    } elseif ( is_single() && !is_attachment() ) {
      if ( get_post_type() != 'post' ) {
        $post_type = get_post_type_object(get_post_type());
        $slug = $post_type->rewrite;
        echo '<a href="' . $homeLink . '/' . $slug['slug'] . '/">' . $post_type->labels->singular_name . '</a> ' . $delimiter . ' ';
        if ($showCurrent == 1) echo $before . get_the_title() . $after;
      } else {
        $cat = get_the_category(); $cat = $cat[0];
        echo get_category_parents($cat, TRUE, ' ' . $delimiter . ' ');
        if ($showCurrent == 1) echo $before . get_the_title() . $after;
      }

    } elseif ( !is_single() && !is_page() && get_post_type() != 'post' && !is_404() ) {
      $post_type = get_post_type_object(get_post_type());
      echo $before . $post_type->labels->singular_name . $after;

    } elseif ( is_attachment() ) {
      $parent = get_post($post->post_parent);
      $cat = get_the_category($parent->ID); $cat = $cat[0];
      echo get_category_parents($cat, TRUE, ' ' . $delimiter . ' ');
      echo '<a href="' . get_permalink($parent) . '">' . $parent->post_title . '</a> ' . $delimiter . ' ';
      if ($showCurrent == 1) echo $before . get_the_title() . $after;

    } elseif ( is_page() && !$post->post_parent ) {
      if ($showCurrent == 1) echo $before . get_the_title() . $after;

    } elseif ( is_page() && $post->post_parent ) {
      $parent_id  = $post->post_parent;
      $breadcrumbs = array();
      while ($parent_id) {
        $page = get_page($parent_id);
        $breadcrumbs[] = '<a href="' . get_permalink($page->ID) . '">' . get_the_title($page->ID) . '</a>';
        $parent_id  = $page->post_parent;
      }
      $breadcrumbs = array_reverse($breadcrumbs);
      foreach ($breadcrumbs as $crumb) echo $crumb . ' ' . $delimiter . ' ';
      if ($showCurrent == 1) echo $before . get_the_title() . $after;

    } elseif ( is_tag() ) {
      echo $before . 'Posts tagged "' . single_tag_title('', false) . '"' . $after;

    } elseif ( is_author() ) {
       global $author;
      $userdata = get_userdata($author);
      echo $before . 'Articles posted by ' . $userdata->display_name . $after;

    } elseif ( is_404() ) {
      echo $before . 'Error 404' . $after;
    }

    if ( get_query_var('paged') ) {
      if ( is_category() || is_day() || is_month() || is_year() || is_search() || is_tag() || is_author() ) echo ' (';
      echo __('Page') . ' ' . get_query_var('paged');
      if ( is_category() || is_day() || is_month() || is_year() || is_search() || is_tag() || is_author() ) echo ')';
    }

    echo '</div>';

  }
} // end custom_breadcrumbs()

Simply paste this function into a functions.php file of your theme and then paste the following code in a place of your theme, where breadcrumbs must appearing:

<?php if (function_exists('custom_breadcrumbs')) custom_breadcrumbs(); ?>

All that remains to do for now, is to design your breadcrumbs with CSS. You can use #crumbs for styling breadcrumbs block and #crumbs .current for styling a current crumb.