DOMDocument::xinclude
PHP function
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(PHP 5, PHP 7, PHP 8)
Substitutes XIncludes in a DOMDocument Object
Description
DOMDocument::xinclude(int $options = 0): int|false
This method substitutes XIncludes in a DOMDocument object.
Note
Due to libxml2 automatically resolving entities, this method will produce unexpected results if the included XML file have an attached DTD.
Parameters
optionsOptions
Return Values
Returns the number of XIncludes in the document, -1 if some processing failed, or false if there were no substitutions.
Examples
DOMDocument::xinclude() example
php
<?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="examples/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();
?>The above example will output something similar to:
output
<?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>