woocommerce_settings-(group_id) │ filter-hook │ WC 1.0

Usage

add_filter( 'woocommerce_settings-(group_id)', 'wp_kama_woocommerce_settings_group_id_filter' );

/**
 * Function for `woocommerce_settings-(group_id)` filter-hook.
 * 
 * @param  $array 
 *
 * @return 
 */
function wp_kama_woocommerce_settings_group_id_filter( $array ){

	// filter...
	return $array;
}

$array

-

Where the hook is called

$settings = apply_filters( 'woocommerce_settings-' . $group_id, array() );

$settings = apply_filters( 'woocommerce_settings-' . $group_id, array() ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores

Where the hook is used in WooCommerce

add_filter( 'woocommerce_settings-email_' . $this->object->id, array( $this, 'register_email_settings' ) );

add_filter( 'woocommerce_settings-wc_admin', array( $this, 'add_settings' ) );