W3C provides a standard called DOM (Document Object Model) for HTML & XML documents. DOM is also used as an interface for accessing and manipulating HTML & XML documents.DOM is a convention for representing and interacting with HTML, XML document objects, it is platform and language independent.
In the example below we create an object called $xml of DOMDocument class, and we access load() and saveXML() functions of it.
$xml=new DOMDocument(); $xml->load("MyFirst.xml"); print $xml->saveXML();
<?xml version="1.0" encoding="ISO-8859-1" ?>
PHP is very easy to learn
Java is the king of open source language
Recommend the tutorial