DOM
PHP Manual

DOMDocument->createElementNS()

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DOMDocument->createElementNS() — Create new element node with an associated namespace

说明

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

This function creates a new element node with an associated namespace. 本节点不会出现在文档中，除非是用例如 DOMNode->appendChild() 函数来将其插入。

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.

返回值

The new DOMElement or FALSE if an error occured.

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.

范例

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

<?php

$dom = new DOMDocument('1.0', 'iso-8859-1');

$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();
?>

上例将输出：

<?xml version="1.0" encoding="iso-8859-1"?>
<xfoo:test xmlns:xfoo="http://www.example.com/XFoo">This is the root element!</xfoo:test>

参见

DOM
PHP Manual