SimpleDOM is built upon SimpleXML and acts as a bridge providing DOM methods using SimpleXML's syntax. It also adds a bunch of convenience methods.

SimpleDOM is a single file with no dependencies. All you need to use it is include it and create SimpleDOM objects instead of SimpleXMLElement objects, or simply use simpledom_load_string() instead of simplexml_load_string().

No user manual, but every method is documented in the phpDocumentor-generated manual included in the downloadable Zip file.