XSLTProcessor::transformToDoc

(PHP 5, PHP 7, PHP 8)

XSLTProcessor::transformToDoc — Transform to a document

说明

public XSLTProcessor::transformToDoc(object $document, ?string $returnClass = null): object|false

Transforms the source node to a document (e.g. DOMDocument) applying the stylesheet given by the XSLTProcessor::importStylesheet() method.

参数

document: The DOMDocument or SimpleXMLElement or libxml-compatible object to be transformed.
returnClass: This optional parameter may be used so that XSLTProcessor::transformToDoc() will return an object of the specified class. That class should either extend or be the same class as document's class.

返回值

The resulting document or false on error.

示例

示例 #1 Transforming to a DOMDocument

<?php

// Load the XML source
$xml = new DOMDocument;
$xml->load('collection.xml');

$xsl = new DOMDocument;
$xsl->load('collection.xsl');

// Configure the transformer
$proc = new XSLTProcessor;
$proc->importStyleSheet($xsl); // attach the xsl rules

echo trim($proc->transformToDoc($xml)->firstChild->wholeText);

?>

以上示例会输出：

Hey! Welcome to Nicolas Eliaszewicz's sweet CD collection!

参见

XSLTProcessor::transformToUri() - Transform to URI
XSLTProcessor::transformToXml() - Transform to XML

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franp at free dot fr ¶

18 years ago

In most cases if you expect XML (or XHTML) as output you better use transformToXML() directly. You gain better control over xsl:output attributes, notably omit-xml-declaration.

Instead of :
$proc = new XSLTProcessor();
$proc->importStylesheet($xsl);
$dom = $proc->transformToDoc($xml);
echo $dom->saveXML();

do use : 
$proc = new XSLTProcessor();
$proc->importStylesheet($xsl);
$newXml = $proc->transformToXML($xml);
echo $newXml;

In the first case, <?xml version="1.0" encoding="utf-8"?> is added whatever you set the omit-xml-declaration while transformToXML() take the attribute into account.