This function is used to add a sidebar to the Contextual Help menu in an admin page. The sidebar appears to the right-side of the main help content.
set_help_sidebar() is a method of the WP_Screen class, and can not be called directly.
Sidebar must be registered AFTER help tabs have been added using the add_help_tab() method.
<?php
$screen = get_current_screen();
$screen->set_help_sidebar( $content );
?>
<?php add_action('admin_menu', 'my_admin_add_page'); function my_admin_add_page() { global $my_admin_page; $my_admin_page = add_options_page(__('My Admin Page', 'map'), __('My Admin Page', 'map'), 'manage_options', 'map', 'my_admin_page'); // Adds my_help_tab when my_admin_page loads add_action('load-'.$my_admin_page, 'my_admin_add_help_tab'); } function my_admin_add_help_tab () { global $my_admin_page; $screen = get_current_screen(); /* * Check if current screen is My Admin Page * Don't add help tab if it's not */ if ( $screen->id != $my_admin_page ) return; // Add my_help_tab if current screen is My Admin Page $screen->add_help_tab( array( 'id' => 'my_help_tab', 'title' => __('My Help Tab'), 'content' => '<p>' . __( 'Descriptive content that will show in My Help Tab-body goes here.' ) . '</p>', ) ); $screen->set_help_sidebar( __('This is the content you will be adding to the sidebar for the current page. You must make sure other tabs have already been added using the "add_help_tab" function above. This sidebar will not show up unless there are tabs for the current screen') ); } ?>
set_help_sidebar() is located in wp-admin/includes/screen.php
.