WordPress at a glance
action is not described

register_setting action-hook . WP 5.5.0

Fires immediately before the setting is registered but after its filters are in place.

Usage

add_action( 'register_setting', 'action_function_name_2291', 10, 3 );
function action_function_name_2291( $option_group, $option_name, $args ){
	// action...
}
$option_group(string)
Setting group.
$option_name(string)
Setting name.
$args(array)
Array of setting registration arguments.

Changelog

Since 5.5.0 Introduced.

Where the hook is called

register_setting()
register_setting
wp-includes/option.php 2310
do_action( 'register_setting', $option_group, $option_name, $args );

Where in WP core the hook is used WordPress

Usage not found.