Snippet to modify Yoast SEO Breadcrumbs for post type parent

Please consider adding the following code to your plugin to use your plugin’s settings to modify the Yoast SEO breadcrumbs.

add_filter( 'wpseo_breadcrumb_links', function ( $links ) {

    $custom_post_type_parents_options = get_option( 'custom_post_type_parents_options' );

    if ( !empty( $custom_post_type_parents_options ) ) {

        foreach( $custom_post_type_parents_options as $option_name => $value ) {
            
            if ( !empty( $value ) ) {

                $post_type = str_replace( 'parent-', '', $option_name );

                if ( is_singular( $post_type ) ) {

                    // Add your landing page as the parent link
                    $landing_page_id = $value;
                    $landing_page = get_post( $landing_page_id );
            
                    $breadcrumbs = [];
                    if ( $landing_page->post_parent ) {
                    
                        $parent = get_post( $landing_page->post_parent );
            
                       $breadcrumbs[] = [
                            'url' => get_permalink( $parent),
                            'text' => $parent->post_title
                       ];
                    }
            
                    $breadcrumbs[] = [
                            'url' => get_permalink( $landing_page_id ),
                            'text' => $landing_page->post_title,
                    ];
                   
            
                    array_splice( $links, 1, 0, $breadcrumbs );
            
                }
            
            

            }
        }
    }

    return $links;
});