houssemz/DOM.md

## DOM.md

      
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              DOM.md
            
          
    The XML DOM Parser :

The DOM parser is a tree-based parser.
Load and Output XML :

Exp :

<!-- file.xml -->
<?xml version="1.0" encoding="UTF-8"?>
<note>
    <to>Tove</to>
    <from>Jani</from>
    <heading>Reminder</heading>
    <body>Don't forget me this weekend!</body>
</note>
<?php
$xmlDoc = new DOMDocument();
$xmlDoc->load("note.xml");

print $xmlDoc->saveXML(); 

# output
/*
<?xml version="1.0" encoding="UTF-8"?>
<note>
    <to>Tove</to>
    <from>Jani</from>
    <heading>Reminder</heading>
    <body>Don't forget me this weekend!</body>
</note>
*/
?>
SimpleXML and DOM :


simplexml_import_dom() Converts to SimpleXML object from DOM node

<?php
$dom = new DOMDocument;
$dom->loadXML('<books><book><title>blah</title></book></books>');

$s = simplexml_import_dom($dom);

echo $s->book[0]->title; // blah

dom_import_simplexml() Converts to DOM element from a SimpleXML object

<?php
$sxe = simplexml_load_string('<books><book><title>blah</title></book></books>');

$dom_sxe = dom_import_simplexml($sxe);

$dom = new DOMDocument('1.0');
// Import the node, and all its children, to the document
$dom_sxe = $dom->importNode($dom_sxe, true);
// And then append it to the "<root>" node
$dom_sxe = $dom->appendChild($dom_*/sxe);

echo $dom->saveXML();

# output
/*
<?xml version="1.0"?>
<books><book><title>blah</title></book></books>
*/