DOMElement::__construct

(PHP 5, PHP 7)

DOMElement::__construct — Creates a new DOMElement object

说明

public DOMElement::__construct ( string $name [, string $value [, string $namespaceURI ]] )

Creates a new DOMElement object. This object is read only. It may be appended to a document, but additional nodes may not be appended to this node until the node is associated with a document. To create a writeable node, use DOMDocument::createElement or DOMDocument::createElementNS.

参数

name: The tag name of the element. When also passing in namespaceURI, the element name may take a prefix to be associated with the URI.
value: The value of the element.
namespaceURI: A namespace URI to create the element within a specific namespace.

范例

Example #1 Creating a new DOMElement


<?php

$dom = new DOMDocument('1.0', 'iso-8859-1');
$element = $dom->appendChild(new DOMElement('root'));
$element_ns = new DOMElement('pr:node1', 'thisvalue', 'http://xyz');
$element->appendChild($element_ns);
echo $dom->saveXML(); /* <?xml version="1.0" encoding="utf-8"?>
<root><pr:node1 xmlns:pr="http://xyz">thisvalue</pr:node1></root> */

?>

参见

DOMDocument::createElement() - Create new element node
DOMDocument::createElementNS() - Create new element node with an associated namespace

User Contributed Notes

Fabian dot Blech at gmx dot de 22-Jul-2010 05:30


Remember, Dom-Nodes mustn't start with a number:



allowed:

<t12345t4>Value</t12345t4>



Not allowed:

<12345t4>VALUE</12345t4>

troelskn at gmail dot com 03-Jun-2008 04:46


Note that this function is buggy. You have to manually escape the $value argument with htmlspecialchars.

See: http://bugs.php.net/bug.php?id=31191

adar at darkpoetry dot de 07-May-2007 10:27


If you like to view an element simply do:





<?php


echo htmlentities($element->C14N());


?>





Undocumented but found ;)