ShinichiN

<p>This plugin enables you to create unlimited custom sidebar/widget areas and switch existing areas. You can do this without touching your theme.</p>
<p>This plugin utilizes term meta api and so it works only with WordPress 4.4 and above.</p>
<p>Your theme needs to use <code>is_active_sidebar()</code> when calling <code>dynamic_sidebar()</code> function.</p>
<p>This will work.</p>
<pre><code>if ( is_active_sidebar( 'sidebar-1' ) ) {
    dynamic_sidebar( 'sidebar-1' );
}
</code></pre>
<p>This doesn’t work.</p>
<pre><code>dynamic_sidebar( 'sidebar-1' );
</code></pre>
<p>If you only want to output your custom sidebar, put this code on where you want to display the sidebar in your theme.</p>
<pre><code>do_action( 'dynamically_dynamic_sidebar' );
</code></pre>
<p><a href="https://github.com/ShinichiNishikawa/Dynamically-Dynamic-Sidebar/" rel="nofollow ugc">This Plugin published on GitHub.</a></p>
<p>ウィジェットエリアをいくつでも定義し、カテゴリやタグ、カスタム分類ごとに差し替えたり、投稿・ページ・カスタム投稿から使いたいサイドバーを指定したりすることができます。「スクリーンショット」のタブをごらんいただくと、イメージが湧きやすいと思います。</p>


Dynamically Dynamic Sidebar

Create unlimited custom sidebar/widget areas and switch existing areas depending on post, page, custom-post-type post, categories, tags and custom tax …

Rob Smelik

<h3>Description</h3>
<p>User Role Widget Areas for bbPress allows you to selectively display content in your themes active widget areas based on standard bbPress user roles (bbPress Keymaster, bbPress Moderator, bbPress Participant, bbPress Spectator) of logged in users. All user role widget areas can be displayed in <strong>any</strong> existing sidebar or widget area within your theme.</p>
<h3>Plugin Features</h3>
<ul>
<li>4 User role based widget areas, one for each of the standard bbPress user roles.</li>
<li>1 display widget for displaying your new widget areas on the front end (public site).</li>
<li>An additional shortcode for displaying your user role and user status based widget areas.</li>
<li>The ability to hard code the script into your theme that displays the widget areas on the front end.</li>
</ul>
<h3>Important Information</h3>
<p>This plugin is designed to work with <a href="https://wordpress.org/plugins/bbpress/" rel="ugc">bbPress</a>, a popular, full-featured forum plugin for WordPress. Therefore, bbPress needs to be installed and activated for the plugin to work.</p>
<h3>Rate The Plugin</h3>
<p>If you like this plugin and find it useful please take a moment to <a href="https://wordpress.org/support/view/plugin-reviews/urwa-for-bbpress#postform" rel="ugc">rate it</a>. Thanks!</p>


Dynamically Dynamic Sidebar vs URWA for bbPress