dom_import_simplexml

(PHP 5)

dom_import_simplexml --  Gets a DOMElement object from a SimpleXMLElement object

说明

DOMElement dom_import_simplexml ( SimpleXMLElement node )

This function takes the node node of class SimpleXML and makes it into a DOMElement node. This new object can then be used as a native DOMElement node.

参数

node

The SimpleXMLElement node.

返回值

The DOMElement node added or FALSE if any errors occur.

范例

例子 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();

?>

add a note add a note User Contributed Notes
justinpatrin at php dot net
02-Jun-2006 12:44
I've found that newer versions of PHP5 require some special syntax in order to properly convert between SimpleXML and DOM. It's not as easy as calling dom_import_simplexml() with a SimpleXML node. To get a proper DOM document (which you need to do most things) you need:
<?php
//$xml is a SimpleXML instance
$domnode = dom_import_simplexml($xml);
$dom = new DOMDocument();
$domnode = $dom->importNode($domnode, true);
$dom->appendChild($domnode);
?>

Switching back, though, is, well...simple.

<?php
//$dom is a DOMDocument instance
$xml = simplexml_import_dom($dom);
?>