BP_Admin_Setting_Forums::settings_save()

	public function settings_save() {
		$sections = bbp_admin_get_settings_sections();

		foreach ( (array) $sections as $section_id => $section ) {
			$fields = bbp_admin_get_settings_fields_for_section( $section_id );

			foreach ( (array) $fields as $field_id => $field ) {
				$value = isset( $_POST[$field_id] ) ? $_POST[$field_id] : '';

				if ( is_callable( $field['sanitize_callback'] ) ) {
					$value = $field['sanitize_callback']($value);
				}

				bp_update_option( $field_id, $value );
			}
		}

		flush_rewrite_rules();
	}