DOMElement::__construct

(PHP 5, PHP 7, PHP 8)

DOMElement::__construct Creates a new DOMElement object

说明

public DOMElement::__construct ( string $qualifiedName , string|null $value = null , string $namespace = "" )

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

qualifiedName

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.

namespace

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

User Contributed Notes

Fabian dot Blech at gmx dot de 22-Jul-2010 08:30
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 07:46
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 01:27
If you like to view an element simply do:

<?php
echo htmlentities($element->C14N());
?>

Undocumented but found ;)