Builds the definition for a single sidebar and returns the ID.

Creates multiple sidebars.

Register a widget

Validates and remaps any “orphaned” widgets to wp_inactive_widgets sidebar, and saves the widget settings. This has to run at…

Output an arbitrary widget as a template tag.

Removes a sidebar from the list.

Unregisters a widget.

Assigns a widget to the given sidebar.

Displays a _doing_it_wrong() message for conflicting widget editor scripts.

Converts the widget settings from single to multi-widget format.