How to Access Hyphenated XML Nodes Using SimpleXML?

Reading XML Nodes with Hyphenated Names Using SimpleXML

Reading XML nodes withhyphenated names using SimpleXML can be tricky. The native SimpleXML library expects nodes to be specifically prefixed with a colon for namespaces (and converted to all-uppercase letters) and treated as a child to the currently loaded XML root element.

For instance, to access the document-meta node in the provided XML:

<?xml version="1.0" encoding="UTF-8"?>
<gnm:Workbook xmlns:gnm="http://www.gnumeric.org/v10.dtd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.gnumeric.org/v9.xsd">
<office:document-meta xmlns:office="urn:oasis:names:tc:opendocument:xmlns:office:1.0" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:meta="urn:oasis:names:tc:opendocument:xmlns:meta:1.0" office:version="1.1">
<dc:creator>Mark Baker</dc:creator>
<dc:date>2010-09-01T22:49:33Z</dc:date>
<meta:creation-date>2010-09-01T22:48:39Z</meta:creation-date>
<meta:editing-cycles>4</meta:editing-cycles>
<meta:editing-duration>PT00H04M20S</meta:editing-duration>
<meta:generator>OpenOffice.org/3.1$Win32 OpenOffice.org_project/310m11$Build-9399</meta:generator>
</office:meta>
</office:document-meta>
</gnm:Workbook>

Instead of using $xml->children($namespacesMeta['office']), use:

$officeXML = $xml->children($namespacesMeta['office'])->{’document-meta’};

This will access the document-meta node and its children accordingly.

Note that this only applies to accessing hyphenated XML elements. For attribute nodes, they can be accessed normally using the @attributes array notation.

For additional clarity on accessing elements with special names in XML using SimpleXML, refer to the documentation at:

[SimpleXML Basics](https://www.php.net/manual/en/simplexml.intro-example.php)

The above is the detailed content of How to Access Hyphenated XML Nodes Using SimpleXML?. For more information, please follow other related articles on the PHP Chinese website!