Reordering XML Elements in php, with jquery?

PHP
1

How to use PHP with something like jQuery to update an xml file based on reordering of html table rows or list items?

http://www.isocra.com/2008/02/table-drag-and-drop-jquery-plugin/

Here it describes a function to Rearrange/Reorder Elements:
http://quest4knowledge.wordpress.com/2010/09/04/php-xml-create-add-edit-modify-using-dom-simplexml-xpath/

Can they be combined to reorder a longer list of elements?

I’m trying to avoid using mySQL, just php/jquery/xml…

Thanks!