Removing specific widgets from specific pages - wordpress

Question

I have specific pages that I need specific widgets to be hidden from the sidebar. I have
-5 pages that are supposed to only display nav_menu-1
-6 other pages that are supposed to display only nav_menu-2
-and then all single-posts that are supposed to only show nav_menu-3
I have this code
add_filter( 'widget_display_callback', 'widget_display_2', 50, 3 );
function widget_display_2( $instance, $widget, $args ){
if ( is_single() && $widget->id == 'nav_menu-1' ) {
return false;
}
return $instance;
}
but what is the best way to insert all my pages and widget IDs to achieve my goal?

Answer 1

It may sound weird but why not using three different sidebars and call them by condition. This way your Theme would become more flexible. It´s always bad to hardcode this into your theme or plugin.
// Register Sidebars
function custom_sidebars() {
$args = array(
'id' => 'custom-sidebar-1',
'name' => __( 'Custom Sidebar 1', 'text_domain' ),
);
register_sidebar( $args );
$args = array(
'id' => 'custom-sidebar-2',
'name' => __( 'Custom Sidebar 2', 'text_domain' ),
);
register_sidebar( $args );
$args = array(
'id' => 'custom-sidebar-3',
'name' => __( 'Custom Sidebar 3', 'text_domain' ),
);
register_sidebar( $args );
}
add_action( 'widgets_init', 'custom_sidebars' );
... after you added this to your functions.php you can call the different sidebars with conditional functions.
<?php
/** call custom sidebar on single.php template **/
if ( is_single() ){
dynamic_sidebar( 'custom-sidebar-1' );
}
?>
<?php
/** call custom sidebar on page.php template (all pages) **/
if ( is_page() ){
dynamic_sidebar( 'custom-sidebar-2' );
}
?>
<?php
/** call custom sidebar on multiple pages by id **/
if ( is_page( array( 11, 22, 33, 44 ) ) ){
dynamic_sidebar( 'custom-sidebar-3' );
}
?>