bp_get_nav_menu_items( string $component = 'members' )

function bp_get_nav_menu_items( $component = 'members' ) {
	$bp    = buddypress();
	$menus = array();

	if ( ! isset( $bp->{$component}->nav ) ) {
		return $menus;
	}

	// Get the item nav and build the menus.
	foreach ( $bp->{$component}->nav->get_item_nav() as $nav_menu ) {
		// Get the correct menu link. See https://buddypress.trac.wordpress.org/ticket/4624.
		$link = bp_loggedin_user_domain() ? str_replace( bp_loggedin_user_domain(), bp_displayed_user_domain(), $nav_menu->link ) : trailingslashit( bp_displayed_user_domain() . $nav_menu->link );

		// Add this menu.
		$menu         = new stdClass;
		$menu->class  = array( 'menu-parent' );
		$menu->css_id = $nav_menu->css_id;
		$menu->link   = $link;
		$menu->name   = $nav_menu->name;
		$menu->parent = 0;

		if ( ! empty( $nav_menu->children ) ) {
			$submenus = array();

			foreach( $nav_menu->children as $sub_menu ) {
				$submenu = new stdClass;
				$submenu->class  = array( 'menu-child' );
				$submenu->css_id = $sub_menu->css_id;
				$submenu->link   = $sub_menu->link;
				$submenu->name   = $sub_menu->name;
				$submenu->parent = $nav_menu->slug;

				// If we're viewing this item's screen, record that we need to mark its parent menu to be selected.
				if ( bp_is_current_action( $sub_menu->slug ) && bp_is_current_component( $nav_menu->slug ) ) {
					$menu->class[]    = 'current-menu-parent';
					$submenu->class[] = 'current-menu-item';
				}

				$submenus[] = $submenu;
			}
		}

		$menus[] = $menu;

		if ( ! empty( $submenus ) ) {
			$menus = array_merge( $menus, $submenus );
		}
	}

	/**
	 * Filters the items registered in the primary and secondary BuddyPress navigation menus.
	 *
	 * @since BuddyPress 1.7.0
	 *
	 * @param array $menus Array of items registered in the primary and secondary BuddyPress navigation.
	 */
	return apply_filters( 'bp_get_nav_menu_items', $menus );
}