register_sidebar()
Function: Builds the definition for a single sidebar and returns the ID.
Source: wp-includes/widgets.php:259
register_sidebar
Action Hook: Fires once a sidebar has been registered.
Source: wp-includes/widgets.php:317
unregister_sidebar()
Function: Removes a sidebar from the list.
Source: wp-includes/widgets.php:331
is_registered_sidebar()
Function: Checks if a sidebar is registered.
Source: wp-includes/widgets.php:347