Creating and parsing XML files using PHP dom-xml

dom|xml| Create <?php
/**
* Topic:create and parse XML files using PHP dom-xml
* Source:http://www.php.net/domxml
* reference:http://www.zugeschaut-und-mitgebaut.de/php/extension.domxml.html
* author:urs@circle.ch, 16-1-2001
*
*/
Creating and parsing XML files using PHP dom-xml
Creates an XML Document object, which is based on the following process
$doc = New_xmldoc ("1.0");

Create the root node and set a property
$root = $doc->add_root ("FAQ");
$root->setattr ("page", "32");

Child nodes
$one = $root->new_child ("question", "");
Set properties for child nodes
$one->setattr ("number", "1");
Question also creates a child node and assigns it a value
$one->new_child ("text", "1.") Where to get libxml-2.0.0? ");
$one->new_child ("Answer", "You can download the latest
Release of Libxml either as a source archive or
RPM package from http://www.xmlsoft.org.
The current version is libxml2-2.2.1. ");

$two = $root->new_child ("question", "");
$two->setattr ("number", "2");
$two->new_child ("text", "2.") How to configure PHP4? ");
Create a node that does not directly assign a value
$twoone = $two->new_child ("Answer", "");
and give it a separate assignment.
$twoone->set_content ("DIR is" libxml install directory
(If you are just use--with-dom it defaults
TO/USR), I needed to use--with-dom=/usr/local ");

$three = $root->new_child ("question", "");
$three->setattr ("number", "7");
$three->new_child ("text", "7.") How do I use DOM XML function? ");
$three->new_child ("Answer", "Read this document source for
A simple example. ");

Output to Browser
Print ("<pre>". Htmlspecialchars ($doc->dumpmem ()). </pre> ");

Write to File
Write back to File
$fp = fopen ("Test_dom.xml", "w+");
Fwrite ($fp, $doc->dumpmem (), strlen ($doc->dumpmem ()));
Fclose ($FP);

// ------------------------------------------------------
Now use XPath to get content from an XML document

$doc = xmldoc (Join ("", File ("Test_dom.xml"));
$ctx = Xpath_new_context ($doc);

All objects
$foo = Xpath_eval ($ctx, "//child::*");
Print_r ($foo);
Print ("<br/><br/>");
Text Node Object
$foo = Xpath_eval ($ctx, "//text");
Print_r ($foo);
Print ("<br/><br/>");
First text Node object
$foo = Xpath_eval ($ctx, "//text[1]");
Print_r ($foo);
Print ("<br/><br/>");
Second Text Node object
$foo = Xpath_eval ($ctx, "//text[2]");
Print_r ($foo);
Print ("<br/><br/>");
Third Answer Object
$foo = Xpath_eval ($ctx, "//answer[3]");
Print_r ($foo);
Print ("<br/><br/>");

The type, name, and content of the third text node
$foo = Xpath_eval ($ctx, "//text[3]");
$tmp = $foo->nodeset;
Print_r ($TMP);
Print ("<br/>");
Print ($tmp [0]->type). "; ";
Print ($tmp [0]->name). "; ";
Print ($tmp [0]->content);

?>

It needs to be explained that the PHP DOM can only run on PHP php4.0.x + Linux