* The access to the root node has to be explicit in
* IsterXmlSimpleXMLImpl, not implicit as with PHP5. Write
* $doc->root->node instead of $doc->node
* You cannot acces CDATA using array syntax. Use methods
* CDATA() and setCDATA() instead.
* You cannot access attributes directly with array syntax.
* Always use attributes() to read and setAttribute() to write attributes.
* Comments are ignored.
* Last and least, this is not as fast as PHP5 SimpleXML--it is pure PHP4.
*
*
* The PHP5 implementation of IsterXmlSimpleXMLImpl will provide a
* wrapper or proxy object with the same name to keep compatibility.
*
* Example:
*
* :simple.xml:
*
*
*
* Tom Foo
* Tamara Bar
*
*
*
* ---
*
* // read and write a document
* $impl = new IsterXmlSimpleXMLImpl;
* $doc = $impl->load_file('simple.xml');
* print $doc->asXML();
*
* // access a given node's CDATA
* print $doc->root->node->child[0]->CDATA(); // Tom Foo
*
* // access attributes
* $attr = $doc->root->node->child[1]->attributes();
* print $attr['gender']; // f
*
* // access children
* foreach( $doc->root->node->children() as $child ) {
* print $child->CDATA();
* }
*
* // change or add CDATA
* $doc->root->node->child[0]->setCDATA('Jane Foo');
*
* // change or add attribute
* $doc->root->node->child[0]->setAttribute('gender', 'f');
*
*
* Note: SimpleXML cannot be used to access sophisticated XML doctypes
* using datatype ANY (e.g. XHTML). With a DOM implementation you can
* handle this.
*
*
* @package xml
* @subpackage simplexml
* @author Ingo Schramm
* @copyright Copyright (c) 2005 Ister.ORG Ingo Schramm
*/
class IsterXmlSimpleXMLImpl extends IsterObject
{
/**
* @access private
*/
var $expat;
/**
* Constructor
*
*/
function IsterXmlSimpleXMLImpl()
{
parent::IsterObject();
$this->expat = new IsterXmlExpatNonValid;
}
/**
* @param string
* @param string currently ignored
* @return object SimpleXMLElement
*/
function load_file($path, $classname = null)
{
$this->expat->setSourceFile($path);
return $this->parse();
}
/**
* @param string
* @param string currently ignored
* @return object SimpleXMLElement
*/
function load_string($string, $classname = null)
{
$this->expat->setSourceString($string);
return $this->parse();
}
/**
* This method is curently not implemented.
*
* @param string
* @param string currently ignored
* @return object SimpleXMLElement
*/
function import_dom($node, $classname = null)
{
return $this->log('not implemented', E_USER_WARNING, 'import_dom');
}
/**
* @access private
*/
function parse()
{
$this->expat->parse();
$doc = $this->expat->getDocument();
// create a reference to doc to manipulate internal reference counter
// otherwise references won't work with nested arrays
// this is pretty a hack! (even works with 4.4.x)
// thanks to chat~kaptain524 at neverbox dot com at php.net
$r =& $doc;
return $doc->toSimpleXML();
}
}
?>