Function: Finds the sidebar that a given widget belongs to.

Function: Assigns a widget to the given sidebar.

Function: Calls the render callback of a widget and returns the output.

Function: Calls the control callback of a widget and returns the output.

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

Function: Enables the widgets block editor. This is hooked into ‘after_setup_theme’ so that the block editor is enabled by default but can be disabled by themes.

Function: Whether or not to use the block editor to manage widgets. Defaults to true unless a theme has removed support for widgets-block-editor or a plugin has filtered the return value of this function.

Function: Converts a widget ID into its id_base and number components.

Function: Compares a list of sidebars with their widgets against an allowed list.

Function: Compares a list of sidebars with their widgets against an allowed list.

Function: Checks if a sidebar is registered.

Function: Process RSS feed widget data and optionally retrieve feed items.

Function: Registers all of the default WordPress widgets on startup.

Function: Display the RSS entries in a list.

Function: Display RSS widget options form.

Function: Handle sidebars config after theme change

Function: Look for “lost” widgets, this has to run at least on each theme change.

Function: Set the sidebar widget option to update sidebars.

Function: Retrieve default registered sidebars list.

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

Function: Output an arbitrary widget as a template tag.