wp-includes/widgets.php:1064Retrieves the registered sidebar with the given ID.
$idstringarray|nullfunction wp_get_sidebar( $id ) { global $wp_registered_sidebars; foreach ( (array) $wp_registered_sidebars as $sidebar ) { if ( $sidebar['id'] === $id ) { return $sidebar; } } if ( 'wp_inactive_widgets' === $id ) { return array( 'id' => 'wp_inactive_widgets', 'name' => __( 'Inactive widgets' ), ); } return null;}Introduced in 5.9.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/widgets.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.