bp_setup_option_filters()

function bp_setup_option_filters() {

	// Get the default options and values.
	$options = bp_get_default_options();

	// Add filters to each BuddyPress option.
	foreach ( array_keys( $options ) as $key ) {
		add_filter( 'pre_option_' . $key, 'bp_pre_get_option' );
	}

	/**
	 * Fires after the addition of filters to each BuddyPress option.
	 *
	 * Allows previously activated plugins to append their own options.
	 *
	 * @since BuddyPress 1.6.0
	 */
	do_action( 'bp_setup_option_filters' );
}