DOMDocument::xinclude

(PHP 5, PHP 7, PHP 8)

DOMDocument::xinclude Substitutes XIncludes in a DOMDocument Object

说明

public DOMDocument::xinclude(int $options = 0): int|false

This method substitutes » XIncludes in a DOMDocument object.

注意:

Due to libxml2 automatically resolving entities, this method will produce unexpected results if the included XML file have an attached DTD.

参数

options

Bitwise OR of the libxml option constants.

返回值

Returns the number of XIncludes in the document, -1 if some processing failed, or false if there were no substitutions.

示例

示例 #1 DOMDocument::xinclude() example

<?php

$xml
= <<<EOD
<?xml version="1.0" ?>
<chapter xmlns:xi="http://www.w3.org/2001/XInclude">
<title>Books of the other guy..</title>
<para>
<xi:include href="book.xml">
<xi:fallback>
<error>xinclude: book.xml not found</error>
</xi:fallback>
</xi:include>
</para>
</chapter>
EOD;

$dom = new DOMDocument;

// let's have a nice output
$dom->preserveWhiteSpace = false;
$dom->formatOutput = true;

// load the XML string defined above
$dom->loadXML($xml);

// substitute xincludes
$dom->xinclude();

echo
$dom->saveXML();

?>

以上示例的输出类似于:

<?xml version="1.0"?>
<chapter xmlns:xi="http://www.w3.org/2001/XInclude">
  <title>Books of the other guy..</title>
  <para>
    <row xml:base="/home/didou/book.xml">
       <entry>The Grapes of Wrath</entry>
       <entry>John Steinbeck</entry>
       <entry>en</entry>
       <entry>0140186409</entry>
      </row>
    <row xml:base="/home/didou/book.xml">
       <entry>The Pearl</entry>
       <entry>John Steinbeck</entry>
       <entry>en</entry>
       <entry>014017737X</entry>
      </row>
    <row xml:base="/home/didou/book.xml">
       <entry>Samarcande</entry>
       <entry>Amine Maalouf</entry>
       <entry>fr</entry>
       <entry>2253051209</entry>
      </row>
  </para>
</chapter>