do_action( 'register_sidebar', array $sidebar ) Fires once a sidebar has been registered. ContentsParameters Source Related Used By Changelog User Contributed Notes Parameters $sidebar (array) Parsed arguments for the registered sidebar. Top ↑Source File: wp-includes/widgets.php View on Trac Top ↑Related Top ↑Used By Used By Used By Description wp-includes/widgets.php: register_sidebar() Builds the definition for a single sidebar and returns the ID. Top ↑Changelog Changelog Version Description 3.0.0 Introduced. Top ↑User Contributed Notes You must log in before being able to contribute a note or feedback.