PHP Manual: dom_import

Description

function dom_import_simplexml(object $node): DOMAttr|DOMElement

This function takes the given attribute or element node (a SimpleXMLElement instance) and creates a DOMAttr or DOMElement node, respectively. The new DOMNode refers to the same underlying XML node as the SimpleXMLElement.

Parameters

node: The attribute or element node to import (a SimpleXMLElement instance).

Return Values

The DOMAttr or DOMElement.

Changelog

Version	Description
8.0.0	This function no longer returns `null` on failure.

Examples

Example #1 Import SimpleXML into DOM with dom_import_simplexml()

<?php

$sxe = simplexml_load_string('<books><book><title>blah</title></book></books>');

if ($sxe === false) {
    echo 'Error while parsing the document';
    exit;
}

$dom_sxe = dom_import_simplexml($sxe);
if (!$dom_sxe) {
    echo 'Error while converting XML';
    exit;
}

$dom = new DOMDocument('1.0');
$dom_sxe = $dom->importNode($dom_sxe, true);
$dom_sxe = $dom->appendChild($dom_sxe);

echo $dom->saveXML();

?>

The above example will output:

<?xml version="1.0"?>
<books><book><title>blah</title></book></books>

Example #2 Import SimpleXML into DOM and modify SimpleXML through DOM

Error handling omitted for brevity.

<?php

$sxe = simplexml_load_string('<books><book><title>blah</title></book></books>');
$elt = dom_import_simplexml($sxe);
$elt->setAttribute("foo", "bar");
echo $sxe->asXML();

?>