benknight

<p>This is a simple plugin that was born out of working on several projects with sectional navigations.  For example, consider the following common navigation tree structure:</p>
<ul>
<li>Home</li>
<li>Item</li>
<li>About Us
<ul>
<li>Sub-item #1</li>
<li>Sub-item #2</li>
</ul>
</li>
<li>Item</li>
<li>Item</li>
</ul>
<p>Then, whenever on the “About Us” page or any of its sub-items, it would output that peice of the navigation:</p>
<ul>
<li>About Us
<ul>
<li>Sub-item #1</li>
<li>Sub-item #2</li>
</ul>
</li>
</ul>
<p>This is particularly useful for websites that have a top horizontal navigation which shows top-level items and want to show a vertical subnavigation in the sidebar.</p>
<p>This plugin works by parsing the output of the <code>wp_nav_menu</code> function as XML and analyzing the CSS class hooks (current-menu-ancestor, current-menu-item, and current-menu-parent).  Because it uses PHP’s SimpleXML library it therefore requires PHP 5+.  It uses the theme’s registered menu locations.</p>
<p>This plugin also exposes the <code>section_subnav()</code> function for theme developers to use as a template tag to manually place a subnav inside the theme.  Here is the usage:</p>
<pre><code><?php

    section_subnav( array( // defaults
        'before_widget' => '<nav id="section-subnav" class="widget widget_section-subnav">',
        'after_widget' => "</nav>",
        'before_title' => '<h3 class="section-subnav-title widget-title">',
        'after_title' => '</h3>',
        'echo' => true
    ));

?>
</code></pre>
<p>It returns false when there is no subnavigation.</p>
<p>This function also provides the <code>section_subnav_args</code> filter hook for writing less code and easier integration with other plugins and child themes.</p>


Section Subnav

Adds a widget and template function for displaying subnavigation based on the current navigation state.

Justin Tadlock

<p>Breadcrumb Trail is one of the most advanced and robust breadcrumb menu systems available for WordPress.  It started out as a small script for basic blogs but has grown into a system that can handle nearly any site’s setup to show the most accurate breadcrumbs for each page.</p>
<h3>Before using</h3>
<p>Please note that Breadcrumb Trail requires that you understand and know how to edit your theme’s PHP code, at least to the extent of copying and pasting one line of code.  If you’re not comfortable doing this, it’s best to ask that your theme author integrate the code necessary to support this plugin.</p>
<h3>How it works</h3>
<p>This plugin automatically detects your permalink setup and displays breadcrumbs based off that structure.  Nearly all sites have some sort of hierarchy.  Breadcrumb Trail recognizes that and builds a set of unique breadcrumbs for each page on your site.</p>
<p>This means that it can also detect custom post types and taxonomies right out of the box.  Whatever you throw at it, it’s got a solution.</p>
<h3>Features</h3>
<ul>
<li>Auto-detects the permalink structure of your site for the most accurate breadcrumbs.</li>
<li>Hooks for plugin/theme developers to overwrite output.</li>
<li>Coded with object-oriented programming (OOP) methods to allow developers to extend it for those highly-custom setups.</li>
<li>Properly handles nearly any custom post type or taxonomy.</li>
</ul>
<h3>Professional support</h3>
<p>If you need professional plugin support from me, the plugin author, you can join the club at <a href="https://themehybrid.com/club" rel="nofollow ugc">Theme Hybrid</a>, which is a professional WordPress help/support site where I handle support for all my plugins and themes for a community of 75,000+ users (and growing).</p>
<h3>Plugin Development</h3>
<p>If you’re a theme author, plugin author, or just a code hobbyist, you can follow the development of this plugin on it’s <a href="https://github.com/justintadlock/breadcrumb-trail" rel="nofollow ugc">GitHub repository</a>.</p>
<h3>Donations</h3>
<p>Yes, I do accept donations.  If you want to donate, you can do so from my <a href="https://themehybrid.com/donate" rel="nofollow ugc">donations page</a> or grab me something from my <a href="http://a.co/flUb0ns" rel="nofollow ugc">Amazon Wish List</a>.</p>
<p>I appreciate all donations, no matter the size.  Further development of this plugin is not contingent on donations, but they are always a nice incentive.</p>


Breadcrumb Trail

This plugin is one of my go-to plugins when it comes to menu-based breadcrumbs. Keep it up!

Great solid plugin

A powerful script for adding breadcrumbs to your site that supports Schema.org HTML5-valid microdata.

Section Subnav vs Breadcrumb Trail