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.

shazdeh

<p>Using this plugin you can use WordPress <a href="https://codex.wordpress.org/Conditional_Tags" rel="nofollow ugc">Conditional Tags</a> to enable or disable menu items on the front-end. It works like ‘Widget Logic’ but for menu items.</p>
<p><em>PLEASE NOTE</em> The conditions are PHP codes that are evaluated using PHP’s “<a href="https://www.php.net/manual/en/function.eval.php" rel="nofollow ugc">eval</a>” function, meaning anyone who has access to the Menu manager in WordPress can execute any code. Be mindful of who has access to the Menu manager.</p>
<h4>Usage</h4>
<p>You must insert conditional tags in the “Visibility” box in the menu item options form. You can use any PHP or WordPress functions to build crazy conditions and logics for menu items. For example, to hide the menu item on homepage you can set the visibility to:</p>
<pre><code>! is_home()
</code></pre>
<p>Show the menu only to logged-in users:</p>
<pre><code>is_user_logged_in()
</code></pre>
<p>Show the menu only to guest visitors:</p>
<pre><code>! is_user_logged_in()
</code></pre>
<p>To show the menu item based on <a href="https://wordpress.org/support/article/roles-and-capabilities/">user capability</a>:</p>
<pre><code>current_user_can( 'manage_options' )
</code></pre>


Menu Item Visibility Control

Control individual menu items' visibility based on your desired condition.

Section Subnav vs Menu Item Visibility Control