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 Dom\Document, DOMDocument, 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.

错误／异常

The following errors are possible when using an expression that invokes PHP callbacks.

Throws an Error if a PHP callback is invoked but there were no callbacks registered, or if the named callback was not registered.
Throws a TypeError if the php:function syntax is used and the handler name is not a string.
Throws an Error if a non-DOM object was returned from a callback.

返回值

The resulting document or false on error.

更新日志

版本	说明
8.4.0	Now throws an Error if the callback cannot be invoked, instead of emitting a warning.
8.4.0	Added support for Dom\Document.

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!

示例 #2 Transforming to a Dom\Document

<?php

$xml = Dom\XMLDocument::createFromFile('collection.xml');
$xsl = Dom\XMLDocument::createFromFile('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.

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官方地址：https://www.php.net/manual/en/xsltprocessor.transformtodoc.php

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XSLTProcessor::transformToDoc

说明

参数

错误／异常

返回值

更新日志

示例

参见

发现了问题？

用户贡献的备注 1 note