Wordpress Breadcrumb Trail - Pages & Post

breadcrumbs-wp-postpage

<?php // Let's make a trail of crumbs, whether we are on the post or the page....This DOES NOT support custom Post Types...

	//Create an is_blog function
	function is_blog($post) {
		$posttype = get_post_type($post);
		return ( ((is_archive()) || (is_author()) || (is_category()) || (is_home()) || (is_single()) || (is_tag())) && ( $posttype == 'post')  ) ? true : false ;
	}

	$bread_crumb_trail = '<span><a href="'.get_bloginfo('url').'">Home</a></span>  &raquo;';
	//Ancestors will only live on hierarchical posts...just pages.
	if(!empty($post->ancestors)){
		foreach($post->ancestors as $parent_id){
			$bread_crumbs[$parent_id] = get_the_title($parent_id);
		}
		$bread_crumbs = array($post->ID => get_the_title()) + $bread_crumbs;
		$bread_crumbs = array_reverse($bread_crumbs, 1);
		foreach($bread_crumbs as $id => $title) {
			if($id == $post->ID){
				$bread_crumb_trail .= '<span>'.$title.'</span>';
			} else {
				$bread_crumb_trail .= '<span><a href="'.get_permalink($id).'">'.$title.'</a></span>  &raquo;  ';
			}
		}

	//Now let's deal with the 'post' postype....There is a new function called is_blog that we created here.
	} elseif(is_blog($post)) {
		$blog_url_slug = 'blog/'; //Do you have anything that preceeds all of your blog posts...
		$blog_homepage_url = get_bloginfo('url').'/'.$blog_url_slug;
		if(is_home()){
			$bread_crumb_trail .= '<span>Blog Archive</span>';
		} elseif(is_category()){
			$bread_crumb_trail .= '<span><a href="'.$blog_homepage_url.'">Blog Archive</a></span> &raquo; ';
			$bread_crumb_trail .= '<span>'.single_cat_title('', false).'</span>';
		} else {
			$category_archive_link = rtrim(str_replace($post->post_name, '', get_permalink($post->ID)), '/');
			$category_archive_title = str_replace('-', ' ', $category_archive_link);
			$category_archive_title = str_replace($blog_homepage_url, ' ', $category_archive_link);
			$bread_crumb_trail .= '<span><a href="'.$blog_homepage_url.'">Blog Archive</a></span> &raquo; ';
			$bread_crumb_trail .= '<span><a href="'.$category_archive_link.'">'.ucwords($category_archive_title).'</a></span> &raquo; ';
			$bread_crumb_trail .= '<span>'.get_the_title().'</span>';
		}
	} else {
		$bread_crumb_trail .= '<span>'.get_the_title().'</span>';
	}
?>