Feeds

Harness XML with PHP 5 extensions

A time to query

7 Elements of Radically Simple OS Migration

Hands on PHP is one of the most commonly used languages for developing web sites while XML has become an industry standard for exchanging data. Increasingly, web sites use XML to transfer data through web feeds such as RSS and Atom, or through web services.

PHP 5 XML extensions provide support for parsing, transformation, XPath navigation, and schema validation of XML documents. The SimpleXML extension in PHP 5 simplifies node selection by converting an XML document to a PHP object that may be accessed with property selectors and array iterators. The XSL extension in PHP 5 is used to transform an XML document.

In this article, I'll show you how to process an example XML document, catalog.xml using the PHP 5 XML extensions.

First things first, though. Before you go anywhere, you'll need to install PHP 5 in Apache HTTP Server, and activate the XSL extension in the php.ini configuration file.

extension=php_xsl.dll

Restart Apache Server after modifying php.ini.

Create your XML

To create an XML document with the PHP 5 DOM extension create a PHP file, createXML.php , in the C:/Program Files/Apache Group/Apache2/htdocs directory, the document root directory of the Apache server. An XML document in PHP 5 is represented with DOMDocument class. Therefore, create a DOMDocument object. Specify the XML version and encoding in the DOMDocument constructor.

$domDocument = new DOMDocument('1.0','utf-8');

An element is represented with the DOMElement class. Create root element catalog with createElement(). Add the root element to the DOMDocument object with appendChild().

$catalog=    $domDocument->createElement("catalog");
$domDocument->appendChild ($catalog);

An attribute in a DOMElement object is represented with the DOMAttr class. Create attribute title with createAttribute(). Set the value of the title attribute using the value property. Add the title attribute to catalog element using setAttributeNode().

$titleAttribute= $domDocument->createAttribute("title");
    $titleAttribute->value="XML Zone";
    $catalog->setAttributeNode ($titleAttribute);

Create a journal element, including the date attribute, within the catalog element. Add an article element, including sub elements title and author, within the journal element. A text node in an element is represented with the DOMText class. Create a text node using the createTextNode() to set the text of title element.

$titleText= $domDocument->createTextNode("The Java XPath API");
 $title->appendChild ($titleText);

Output the XML document created to the browser using saveXML().

$domDocument->saveXML();

Run the PHP script with URL http://localhost/createXML.php. The XML document, catalog.xml, gets generated.

Endpoint data privacy in the cloud is easier than you think

Next page: Parse the XML

More from The Register

next story
PEAK LANDFILL: Why tablet gloom is good news for Windows users
Sinofsky's hybrid strategy looks dafter than ever
Leaked Windows Phone 8.1 Update specs tease details of Nokia's next mobes
New screen sizes, dual SIMs, voice over LTE, and more
POW! Apple smites Macbook Air EFI firmware update borkage
Fruity firm provides digital balm for furious fanbois
Call off the firing squad: HP grants stay of execution to OpenVMS
Startup to take over support for today's Itaniums and beyond
Fiendishly complex password app extension ships for iOS 8
Just slip it in, won't hurt a bit, 1Password makers urge devs
Mozilla keeps its Beard, hopes anti-gay marriage troubles are now over
Plenty on new CEO's todo list – starting with Firefox's slipping grasp
Apple: We'll unleash OS X Yosemite beta on the MASSES on 24 July
Starting today, regular fanbois will be guinea pigs, it tells Reg
Another day, another Firefox: Version 31 is upon us ALREADY
Web devs, Mozilla really wants you to like this one
prev story

Whitepapers

7 Elements of Radically Simple OS Migration
Avoid the typical headaches of OS migration during your next project by learning about 7 elements of radically simple OS migration.
Implementing global e-invoicing with guaranteed legal certainty
Explaining the role local tax compliance plays in successful supply chain management and e-business and how leading global brands are addressing this.
Consolidation: The Foundation for IT Business Transformation
In this whitepaper learn how effective consolidation of IT and business resources can enable multiple, meaningful business benefits.
Solving today's distributed Big Data backup challenges
Enable IT efficiency and allow a firm to access and reuse corporate information for competitive advantage, ultimately changing business outcomes.
A new approach to endpoint data protection
What is the best way to ensure comprehensive visibility, management, and control of information on both company-owned and employee-owned devices?