Peter Massey-Plantinga

<p>A conditional two-level menu only shows the second level of the menu on relevant pages.</p>
<p>For example, if you had a menu that had a structure like so:</p>
<ul>
<li>Home</li>
<li>About
<ul>
<li>History</li>
<li>People</li>
</ul>
</li>
<li>Contact
<ul>
<li>Mail</li>
<li>Phone</li>
<li>Email</li>
</ul>
</li>
</ul>
<p>You would only be able to see the “History” and “People” menu items on the “About,” “History,” and “People” pages.</p>


Two Level Conditional Menu

This plugin converts a two-level menu to a conditional two-level menu.

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.

Two Level Conditional Menu vs Breadcrumb Trail