Adding Microformatted Breadcrumbs to Thesis

Eric Nagel

13 years ago

I have been, or can be if you click on a link and make a purchase, compensated via a cash payment, gift, or something else of value for writing this post. Regardless, I only recommend products or services I use personally and believe will be good for my readers.

I received an email the other day asking how I added my breadcrumbs to my Thesis site.

On the site, they look like this:

But in the search results, they appear like this:

In the search results, the title is linked to the blog post, while the category is linked to the category page.

Here’s how I do it in Thesis…

In custom_functions.php, I add the following function:

function breadcrumbs() {
	global $post;

	if (is_single()) {
		$aCategories = get_the_category($post->ID);
		?>
		<div itemscope itemtype="http://data-vocabulary.org/Breadcrumb" id="breadcrumbs">
			You are here: <a href="http://ericnagel.wpengine.com/" itemprop="url"><span itemprop="title">Eric Nagel</span></a> &gt;
			<span itemprop="child" itemscope itemtype="http://data-vocabulary.org/Breadcrumb">
				<a href="/category/<?= $aCategories[0]->slug ?>" itemprop="url"><span itemprop="title"><?= $aCategories[0]->name ?></span></a> &gt;
				<span itemprop="child" itemscope itemtype="http://data-vocabulary.org/Breadcrumb">
					<a href="<?php the_permalink(); ?>" itemprop="url"><span itemprop="title"><?php the_title() ?></span></a>
				</span>
			</span>
		</div>

		<?php
	} // ends if (is_single())
} // ends function breadcrumbs()

And then I add the hook to call the function:

add_action('thesis_hook_before_post', 'breadcrumbs');

Of course, you’ll want to take out the references to “Eric Nagel” and ericnagel.com. Also, my category slug is “category” but you may have changed yours. If so, make that change (line 10)