PHP - XSLTProcessor::transformToDoc() Function

Definition and Usage

XML is a mark-up language to share the data across the web, XML is for both human read-able and machine read-able. XSL extension is an implementation of the XSL standard to perform XSTL transformation using the libxslt library.

The XSLTProcessor::transformToDoc() function accepts an object of the class DOMNode as a parameter and transforms it to a DOMDocument by applying a style sheet to it.

Syntax

XSLTProcessor::transformToDoc($doc);

Parameters

Sr.No	Parameter & Description
1	doc(Mandatory) This is an object of the DOMNode class representing the document that is to be transformed.

Return Values

This function returns an object of the class DOMDocument in case of success and a boolean value which is FALSE incase of failure.

PHP Version

This function was first introduced in PHP Version 5 and works in all the later versions.

Example

Following is an example of this function −

sample.xml:

<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="example.xsl"?>
<Tutorial>
   <Title>JavaFX</Title>
   <Authors>
      <Author>Krishna</Author>
      <Author>Rajeev</Author>
   </Authors>
   <Body>Sample text</Body>
</Tutorial>

sample.xsl:

<?xml version="1.0"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
   <xsl:output method="text"/>

   <xsl:template match="/">
      Title - <xsl:value-of select="/Tutorial/Title"/>
      Authors: <xsl:apply-templates select="/Tutorial/Authors/Author"/>
   </xsl:template>

   <xsl:template match="Author">
      - <xsl:value-of select="." />
   </xsl:template>
</xsl:stylesheet>

sample.php:

<?php
   //Loading an XSL document
   $xsl = new DOMDocument();
   $xsl->load("sample.xsl");

   //Loading an XML document
   $xml = new DOMDocument();
   $xml->load("sample.xml");

   //Creating an XSLTProcessor
   $proc = new XSLTProcessor();

   //Importing the XSL document
   $proc->importStyleSheet($xsl);

   //Transforming the style to XML
   $res = $proc->transformToDoc($xml);
   print_r($res);
?>

This will produce following result −

DOMDocument Object
(
   [doctype] =>
   [implementation] => (object value omitted)
   [documentElement] =>
   [actualEncoding] =>
   [encoding] =>
   [xmlEncoding] =>
   [standalone] => 1
   [xmlStandalone] => 1
   [version] => 1.0
   [xmlVersion] => 1.0
   [strictErrorChecking] => 1
   [documentURI] =>
   [config] =>
   [formatOutput] =>
   [validateOnParse] =>
   [resolveExternals] =>
   [preserveWhiteSpace] => 1
   [recover] =>
   [substituteEntities] =>
   [nodeName] => #document
   [nodeValue] =>
   [nodeType] => 9
   [parentNode] =>
   [childNodes] => (object value omitted)
   [firstChild] => (object value omitted)
   [lastChild] => (object value omitted)
   [previousSibling] =>
   [nextSibling] =>
   [attributes] =>
   [ownerDocument] =>
   [namespaceURI] =>
   [prefix] =>
   [localName] =>
   [baseURI] =>
   [textContent] =>
   Title - JavaFX
   Authors:
   - Krishna
   - Rajeev
)

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