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dom_import_simplexml Ermittelt ein DOMElement-Objekt aus einem SimpleXMLElement-Objekt


DOMElement dom_import_simplexml ( SimpleXMLElement $node )

Diese Funktion verwendet den Knoten node der Klasse SimpleXML und macht ihn zu einem DOMElement-Knoten. Dieses neue Objekt kann als nativer DOMElement-Knoten verwendet werden..



Der SimpleXMLElement-Knoten.


Der hinzugefügte DOMElement-Knoten oder FALSE falls irgendein Fehler aufgetreten ist.


Beispiel #1 Importiert SimpleXML in DOM mit der Funktion dom_import_simplexml()



if (
$sxe === false) {
'Fehler beim Parsen des Dokumentes';

$dom_sxe dom_import_simplexml($sxe);
if (!
$dom_sxe) {
'Fehler bei Konvertierung zu XML';

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



Siehe auch

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User Contributed Notes 4 notes

Jeff M
7 years ago
SimpleXML is an 'Object Mapping XML API'. It is not DOM, per se. SimpleXML converts the XML elements into PHP's native data types.

The dom_import_simplexml and simplexml_import_dom functions do *not* create separate copies of the original object. You are free to use the methods of either or both interchangeably, since the underlying instance is the same.

// initialize a simplexml object
$sxe = simplexml_load_string('<root/>');
// get a dom interface on the simplexml object
$dom = dom_import_simplexml($sxe);

// dom adds a new element under the root
$element = $dom->appendChild(new DOMElement('dom_element'));
// dom adds an attribute on the new element
$element->setAttribute('creator', 'dom');

// simplexml adds an attribute on the dom element
$sxe->dom_element['sxe_attribute'] = 'added by simplexml';

// simplexml adds a new element under the root
$element = $sxe->addChild('sxe_element');
// simplexml adds an attribute on the new element
$element['creator'] = 'simplexml';

// dom finds the simplexml element (via DOMNodeList->index)
$element = $dom->getElementsByTagName('sxe_element')->item(0);

// dom adds an attribute on the simplexml element
$element->setAttribute('dom_attribute', 'added by dom');
    echo (
    echo (


SimpleXMLElement Object
    [dom_element] => SimpleXMLElement Object
            [@attributes] => Array
                    [creator] => dom
                    [sxe_attribute] => added by simplexml


    [sxe_element] => SimpleXMLElement Object
            [@attributes] => Array
                    [creator] => simplexml
                    [dom_attribute] => added by dom



What this illustrates is that both interfaces are operating on the same underlying object instance. Also, when you dom_import_simplexml, you can create and add new elements without reference to an ownerDocument (or documentElement).

So passing a SimpleXMLElement to another method does not mean the recipient is limited to using SimpleXML methods.

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crescentfreshpot at yahoo dot com
9 years ago
justinpatrin at php dot net:
> To get a proper DOM document (which you need to do most things) you need...

No you don't. Just do:
= dom_import_simplexml($xml)->ownerDocument;
justinpatrin at php dot net
10 years ago
I've found that newer versions of PHP5 require some special syntax in order to properly convert between SimpleXML and DOM. It's not as easy as calling dom_import_simplexml() with a SimpleXML node. To get a proper DOM document (which you need to do most things) you need:
//$xml is a SimpleXML instance
$domnode = dom_import_simplexml($xml);
$dom = new DOMDocument();
$domnode = $dom->importNode($domnode, true);

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

//$dom is a DOMDocument instance
$xml = simplexml_import_dom($dom);
biniou at yopmail dot com
9 months ago
Very useful to add a CDATA node with SimpleXMLElement (use it like addChild) :

class My_SimpleXMLElement extends SimpleXMLElement {
    public function
addChildWithCData($name, $value = NULL) {
$new_child = $this->addChild($name);
$node = dom_import_simplexml($new_child);
$no = $node->ownerDocument;
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