PHP XML DOM (Cont.)

Load and Output XML
This example performs the following tasks:
  1. Create a DOMDocument object.

  2. Load the XML from note.xml into it by using the load(filename) method.

  3. Then the saveXML method puts the internal XML document into a string, so we can output it. 
 <?php
  $xmlDoc = new DOMDocument( );
  $xmlDoc->load( "" );
  print $xmlDoc->saveXML( );
 ?>
   

Looping through XML
This example performs the following tasks:
  1. Initialize the XML parser.

  2. Load the XML.

  3. Loop through all elements of the note.xml element using the properties documentElement, childNodes, nodeName, and nodeValue. 
 <?php
  $xmlDoc = new DOMDocument( );
  $xmlDoc->load( "" );
  $x = $xmlDoc->documentElement;
  foreach ( $x->childNodes as $item ) {
   print $item->nodeName . " = ";
   print $item->nodeValue . "<br />";
  }
 ?>
   

In the example above, there are empty text nodes between each element. When XML generates, it often contains white-spaces between the nodes. The XML DOM parser treats these as ordinary elements, and if you are not aware of them, they sometimes cause problems.