Marin Atanasov

Provides the theme and plugin developers an easy way to build and implement highly customizable breadcrumb functionality, specifically tailored to their needs. 
Supports a lot of filters and hooks, and is written in OOP style, giving developers full control over the breadcrumb trail items and appearance. 
This plugin can also be embedded in themes, instead of installing it as a WordPress plugin.
<h3>Configuration</h3>
The most basic way to insert Carbon Breadcrumbs in your theme code is:
<pre><code><?php Carbon_Breadcrumb_Trail::output(); ?>
</code></pre>
If you want to specify various breadcrumb rendering options, you can specify them in an array, like this:
<pre><code><?php
Carbon_Breadcrumb_Trail::output(array(
 'glue' => ' &gt; ', // glue between breadcrumb items
 'link_before' => '',
 'link_after' => '',
 'wrapper_before' => '',
 'wrapper_after' => '',
 'title_before' => '',
 'title_after' => '',
 'min_items' => 2,
 'last_item_link' => true,
 'display_home_item' => true,
 'home_item_title' => __('Home', 'carbon_breadcrumbs'),
 'renderer' => 'Carbon_Breadcrumb_Trail_Renderer',
));
?>
</code></pre>
For additional configuration and developer documentation, you can visit the Github repository:
https://github.com/tyxla/carbon-breadcrumbs
<h3>Ideas and bug reports</h3>
Any ideas for new modules or any other additional functionality that users would benefit from are welcome.
If you have an idea for a new feature, or you want to report a bug, feel free to do it here in the Support tab, or you can do it at the Github repository of the project:
https://github.com/tyxla/carbon-breadcrumbs

Carbon Breadcrumbs

This remains the best breadcrumbs plugin I've used. In addition to its rich customization options, it provides developers with various easy ways to extend it.



The best breadcrumbs plugin I've used

This plugin has saved me quite some time.
Thanks to the numerous filters, you can adjust everything.
Respect <3

Very customizable

GREAT plugin, fantastic codebase: super clean & TESTED?! FTW!

Only downside is no schematagging out of the box :/. This is a pivotal SEO feature and I think this would greatly boost interest in your plugin.

Info: https://developers.google.com/search/docs/data-types/breadcrumbs#guidelines

Result should look like:

<ol itemscope itemtype="http://schema.org/BreadcrumbList">
 <li itemprop="itemListElement" itemscope
 itemtype="http://schema.org/ListItem">
 <a itemscope itemtype="http://schema.org/WebPage"
 itemprop="item" href="link.html">
 Crumb 1
 </a>
 <meta itemprop="position" content="1" />
/
 </li>
 <li itemprop="itemListElement" itemscope
 itemtype="http://schema.org/ListItem">
 <a itemscope itemtype="http://schema.org/WebPage"
 itemprop="item" href="link2.html">
 Crumb 2
 </a>
 <meta itemprop="position" content="2" />
 </li>
</ol>



Here's how I've shimmed it in:


<?php
 $breadcrumbs = new Carbon_Breadcrumb_Trail(array(
 'glue' => ' / ',
 'link_before' => '<li itemprop="itemListElement" itemscope itemtype="http://schema.org/ListItem">',
 'link_after' => '</li>',
 'wrapper_before' => '<ol class="breadcrumbs" itemscope itemtype="http://schema.org/BreadcrumbList">',
 'wrapper_after' => '</ol>',
 'title_before' => '',
 'title_after' => '',
 ));

 $breadcrumbs->setup();
 echo $breadcrumbs->render(true); // WP_KSES strips itemprop, itemscope, etc, so bypassing!!!

 add_filter('carbon_breadcrumbs_item_attributes', _'breadcrumb_schematags', 10, 2);
 function breadcrumb_schematags($attributes, $item) {
 if (!is_array($attributes)) $attributes = array();
 $attributes['itemscope'] = null;
 $attributes['itemtype'] = 'http://schema.org/WebPage';
 $attributes['itemprop'] = 'item';
 return $attributes;
 }
 add_filter('carbon_breadcrumbs_item_output', 'breadcrumb_item_position', 10, 5);
 function breadcrumb_item_position($item_output, $item, $trail, $trail_renderer, $index){
 // Add Position
 $n = strrpos($item_output, '</li>');
 $item_output = substr($item_output, 0, $n) . '<meta itemprop="position" content="'. $index .'" />' . substr($item_output, $n);
 return $item_output;
 }

Really wonderful, well-thought code. wish there were schematags

A basic WordPress plugin for breadcrumbs with advanced capabilities for extending.

Jérome Barbato

<blockquote>
Try it out for free => <a href="https://tastewp.org/plugins/website-carbon-calculator?redirect=options-general.php%3Fpage=carbon-calculator-options&ni=true" rel="nofollow ugc">https://tastewp.org/plugins/website-carbon-calculator</a>
</blockquote>
The internet consumes a lot of electricity. 1021 TWh per year to be precise. To give you some perspective, that’s more than the entire United Kingdom.
From data centers to transmission networks to the billions of connected devices that we hold in our hands, it is all consuming electricity, and in turn producing carbon emissions equal to or greater than the global aviation industry. Yikes!
The WordPress Carbon Calculator empowers website owners to assess and minimize their carbon footprint. Drawing inspiration from the acclaimed Website Carbon Calculator algorithm 2.0 and leveraging The Green Web Foundation’s co2.js, this user-friendly tool allows you to calculate the CO₂ impact and performance of any page on your website directly from your WordPress admin panel.
You can choose to activate it on selected post types and taxonomies, with full support for custom post types and custom taxonomies.
Key Features:
<ul>
<li>Precision Carbon Calculations: Built upon the Website Carbon Calculator algorithm 2.0 and powered by The Green Web Foundation’s co2.js, delivering accurate CO₂ impact calculations with the latest environmental data.</li>
<li>Intuitive Interface: Offers a user-friendly interface within your WordPress admin area, simplifying access to environmental and performance data.</li>
<li>Front-End Presentation: Displays the computed CO₂ impact or the Google Page Speed Performance score on your website’s front end, engaging and educating your visitors.</li>
<li>Data from Google Page Speed: Utilizes Google Page Speed to gather loaded data, providing comprehensive performance metrics for informed decisions.</li>
</ul>
<h3>Roadmap</h3>
<ul>
<li>Translations</li>
<li>WebPageTest, GTmetrix and Yellow Lab Tools support</li>
<li>Ecoindex.fr algorithm support</li>
</ul>

Website Carbon Calculator

Effortlessly calculate any page’s impact and performance, with real-time results and no reliance on the Website Carbon API, ensuring instant updates.

Carbon Breadcrumbs vs Website Carbon Calculator