Lukas Rydygel

The plugin allows you to render breadcrumbs and configurate them with filters.
<h3>Usage</h3>
Use the function ‘jinx_breadcrumbs’ to render the breadcrumbs where you want them to be. You may overwrite the default arguments by passing an array to the function.
<pre><code><?php

 if (function_exists('jinx_breadcrumbs')) :

 jinx_breadcrumbs([
 // default args
 'home' => __('Home', 'jinx-breadcrumbs'),
 'search' => __('Search: "%s"', 'jinx-breadcrumbs'),
 '404' => __('Error 404', 'jinx-breadcrumbs'),
 'author' => __('Author: %s', 'jinx-breadcrumbs'),
 'year' => 'Y',
 'month' => 'F',
 'day' => 'd',
 'before' => '<nav aria-label="breadcrumb"><ol>',
 'after' => '</ol></nav>',
 'before_item' => '<li%s>',
 'after_item' => '</li>',
 ]);

 endif;

?>
</code></pre>
You may also use the filter ‘jinx_jinx_breadcrumbs’ to overwrite them.
<pre><code><?php

 add_filter('jinx_breadcrumbs', function($args) {

 return array_merge($args, [
 'home' => __('Start', 'cca'),
 'search' => __('Your searched for "%s"', 'cca'),
 ]);

 });

?>
</code></pre>
The plugin will automatically try to find the correct archive pages by using the rewrite slug of custom taxonomies and post types.
If you may want to change this behavior, you may use some filters to manipulate the archive page.
If you return NULL, the archive page will be removed.
<pre><code><?php

 // filters the archive page, passing the PID, type ('taxonomy' or 'post_type') and name (eg. 'video')
 add_filter('jinx_breadcrumbs_archive', function($pid, $type, $name) {

 return $pid;

 }, 10, 3);

 // filters the archive page, passing the PID and name (eg. 'video')
 // the type is part of the filter (eg. 'jinx_breadcrumbs_archive_taxonomy')
 add_filter('jinx_breadcrumbs_archive_{type}', function($pid, $name) {

 return $pid;

 }, 10, 2);

 // filters the archive page, passing the PID
 // the type and name are part of the filter (eg. 'jinx_breadcrumbs_archive_post_type_video')
 add_filter('jinx_breadcrumbs_archive_{type}_{name}', function($pid) {

 return $pid;

 }, 10, 1);

?>
</code></pre>

Jinx-Breadcrumbs

Simple yet powerful breadcrumbs for geeks

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Set a primary category for your posts… and then do stuff with it.
Why would I want a primary category?
Out of the box, WordPress allows you to assign multiple categories to a post. Unless you’re enforcing a strict one-category-per-post-only rule for your website, this can be a problem now for displaying the most important category for your respective posts, as opposed to WordPress automatically selecting it for you.
Let’s say that your blog is about animals, and you publish an article titled “Why Do Dogs Love Water and Cats Hate It?” with the categories: Cats, Dogs, and Pets assigned to it.
By default, anywhere that WordPress might display a single category to represent the post, it’s probably going to display Cats by default, but since the post is equally about both cats and dogs, maybe the more general Pets category would be more appropriate.
This plugin allows you to accomplish that, whether it’s for presentational, structural, organizational, SEO, or all of the above purposes.
In what ways can I utilize a primary category?
<pre><code>[primary-cat]
</code></pre>
In any creative way that you can imagine, but here are some examples I thought of:
<ul>
<li>To present the main category that the post belongs to above its title (by adding <code><?php echo do_shortcode( '[primary-cat]' ); ?></code> in your theme code, child theme, or custom functions plugin), in some aesthetic way (which can be styled with CSS <code>.primary-cat</code>). Lots of blog, news, and magazine sites have this feature.</li>
<li>To have the appropriate slug in your post URLs if you’re using the custom <code>/%category%/%postname%/</code> permalink structure under Settings > Permalinks.</li>
<li>To have breadcrumbs (by using the shortcode <code>[primary-bread]</code>) on your site for user-friendliness (which can be styled with CSS <code>#breadcrumbs</code>), and can in turn, also improve SEO.</li>
</ul>

Primary Cat

Set a primary category for your posts... and then do stuff with it. [primary-cat]

Jinx-Breadcrumbs vs Primary Cat