DOMDocument::createElementNS

(PHP 5)

DOMDocument::createElementNS Create new element node with an associated namespace

Beschreibung

public DOMElement DOMDocument::createElementNS ( string $namespaceURI , string $qualifiedName [, string $value ] )

This function creates a new element node with an associated namespace. Dieser Knoten wird in Ihrem Dokument nicht sichtbar sein, bis dieser zum Beispiel mit der Funktion DOMNode::appendChild eingefügt wird.

Parameter-Liste

namespaceURI

The URI of the namespace.

qualifiedName

The qualified name of the element, as prefix:tagname.

value

The value of the element. By default, an empty element will be created. You can also set the value later with DOMElement::$nodeValue.

Rückgabewerte

The new DOMElement or FALSE if an error occurred.

Fehler/Exceptions

DOM_INVALID_CHARACTER_ERR

Raised if qualifiedName contains an invalid character.

DOM_NAMESPACE_ERR

Raised if qualifiedName is a maformed qualified name.

Beispiele

Beispiel #1 Creating a new element and inserting it as root

<?php

$dom 
= new DOMDocument('1.0''utf-8');

$element $dom->createElementNS('http://www.example.com/XFoo''xfoo:test''This is the root element!');

// We insert the new element as root (child of the document)
$dom->appendChild($element);

echo 
$dom->saveXML();
?>

Das oben gezeigte Beispiel erzeugt folgende Ausgabe:

<?xml version="1.0" encoding="utf-8"?>
<xfoo:test xmlns:xfoo="http://www.example.com/XFoo">This is the root element!</xfoo:test>

Beispiel #2 A namespace prefix example

<?php
$doc  
= new DOMDocument('1.0''utf-8');
$doc->formatOutput true;
$root $doc->createElementNS('http://www.w3.org/2005/Atom''element');
$doc->appendChild($root);
$root->setAttributeNS('http://www.w3.org/2000/xmlns/' ,'xmlns:g''http://base.google.com/ns/1.0');
$item $doc->createElementNS('http://base.google.com/ns/1.0''g:item_type''house');
$root->appendChild($item);

echo 
$doc->saveXML(), "\n";

echo 
$item->namespaceURI"\n"// Outputs: http://base.google.com/ns/1.0
echo $item->prefix"\n";       // Outputs: g
echo $item->localName"\n";    // Outputs: item_type
?>

Das oben gezeigte Beispiel erzeugt folgende Ausgabe:

<?xml version="1.0" encoding="utf-8"?>
<element xmlns="http://www.w3.org/2005/Atom" xmlns:g="http://base.google.com/ns/1.0">
  <g:item_type>house</g:item_type>
</element>

http://base.google.com/ns/1.0
g
item_type

Siehe auch

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User Contributed Notes 1 note

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1
Martin
2 years ago
To avoid multiple xmlns re-declaration, make sure you appending ElementNS into actual DOMDocument tree (not into some currently-assembed derelict element).
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