In some case you may want to register an additional sidebar for pages or a custom post type you’ve created. In this article, we’re going to learn how to register and add a custom sidebar to a custom post type.

First, we’re going to register our sidebar by adding the code below to our child-theme’s functions.php

// Custom Sidebar
function prefix_custom_sidebar() {

    register_sidebar( array(
        'name'          => __( 'Custom Sidebar', 'page-builder-framework' ),
        'id'            => 'custom-sidebar',
        'before_widget' => '<div id="%1$s" class="widget %2$s">',
        'after_widget'  => '</div>',
        'before_title'  => '<h4 class="wpbf-widgettitle">',
        'after_title'   => '</h4>'
    ) );

}
add_action( 'widgets_init', 'prefix_custom_sidebar' );

Our new Sidebar should now appear under Appearance -> Widgets and can be filled with content.

In the next step, we’re going to display the sidebar on our custom post type by using a filter.

// Replace the default sidebar with our new custom sidebar on all docs posts
function prefix_do_custom_sidebar( $sidebar ) {

    if( is_singular( 'docs' ) ) {
        $sidebar ='custom-sidebar';
    }

    return $sidebar;

}
add_filter( 'wpbf_do_sidebar', 'prefix_do_custom_sidebar' );