WordPress at a glance
filter is not described

register_sidebar_defaults filter-hook . WP 5.3.0

Filters the sidebar default arguments.

Usage

add_filter( 'register_sidebar_defaults', 'filter_function_name_1352' );
function filter_function_name_1352( $defaults ){
	// filter...

	return $defaults;
}
$defaults(array)
The default sidebar arguments.

Changelog

Since 5.3.0 Introduced.

Where the hook is called

register_sidebar()
register_sidebar_defaults
wp-includes/widgets.php 275
$sidebar = wp_parse_args( $args, apply_filters( 'register_sidebar_defaults', $defaults ) );

Where the hook is used (in WP core)

Usage not found!