DOMDocument::createElementNS

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(PHP 5, PHP 7)

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


PHP中文网词条详解说明

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

This function creates a new element node with an associated namespace. 此节点出现在文档中,除非是用诸如 DOMNode->appendChild() 等函数来将其插入。


PHP中文网词条详解参数

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.  


PHP中文网词条详解返回值

The new DOMElement or FALSE if an error occurred.

PHP中文网词条详解错误/异常

DOM_INVALID_CHARACTER_ERR

    Raised if qualifiedName contains an invalid character.

DOM_NAMESPACE_ERR

    Raised if qualifiedName is a maformed qualified name. 


PHP中文网词条详解范例

Example #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();
?>

以上例程会输出:

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

Example #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
?>

以上例程会输出:

<?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/1.0gitem_type


PHP中文网词条详解参见


参考资料
词条标签:
createElementNS   DOMDocument