DOMElement::__construct()
(PHP 5, PHP 7)
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
Note that this function is buggy. You have to manually escape the $value argument with htmlspecialchars. See: http://bugs.php.net/bug.php?id=31191
If you like to view an element simply do: <?php echo htmlentities($element->C14N()); ?> Undocumented but found ;)
Remember, Dom-Nodes mustn't start with a number: allowed: <t12345t4>Value</t12345t4> Not allowed: <12345t4>VALUE</12345t4>