DOMDocument->registerNodeClass()

(no version information, might be only in CVS)

DOMDocument->registerNodeClass() -- Register extended class used to create base node type

Description

class DOMDocument {

bool registerNodeClass ( string baseclass, string extendedclass )

}

This method allows you to register your own extended DOM class to be used afterward by the PHP DOM extension.

This method is not part of the DOM standard.

Parameters

baseclass

The DOM class that you want to extend. You can find a list of these classes in the chapter introduction.

Of course, you won't be able to register a class extending DOMDocument but you can always start your document by instanciating your own extending class.

extendedclass

Your extended class name. If NULL is provided, any previously registered class extending baseclass will be removed.

Return Values

Geeft TRUE terug bij succes, FALSE indien er een fout is opgetreden.

ChangeLog

VersionDescription
PHP 5.2.2 Prior to 5.2.2, a previously registered extendedclass had to be unregistered before being able to register a new class extending the same baseclass.

Voorbeelden

Voorbeeld 1. Adding a new method to DOMElement to ease our code

<?php

class myElement extends DOMElement {
   function
appendElement($name) {
      return
$this->appendChild(new myElement($name));
   }
}

class
myDocument extends DOMDocument {
   function
setRoot($name) {
      return
$this->appendChild(new myElement($name));
   }
}

$doc = new myDocument();
$doc->registerNodeClass('DOMElement', 'myElement');

// From now on, adding an element to another costs only one method call !
$root = $doc->setRoot('root');
$child = $root->appendElement('child');
$child->setAttribute('foo', 'bar');

echo
$doc->saveXML();

?>

Het resultaat van dit script is als volgt:

<?xml version="1.0"?>
<root><child foo="bar"/></root>