egroupware/importexport/inc/class.importexport_arrayxml.inc.php

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<?php
/**
* eGroupWare
*
* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
* @package importexport
* @link http://www.egroupware.org
* @author Cornelius Weiss <nelius@cwtech.de>
* @copyright Cornelius Weiss <nelius@cwtech.de>
* @version $Id: $
*/
/**
* class arrayxml
* easy to use array2xml and xml2array functions. Presumably this is the n+1
* class of this kind out there, but i wasn't able to find a wokring one...
*
* @abstract PHP allowes array keys to be numeric while XML prohibits this.
* Therefore the XML structur of this class is a bit uncommon but nessesary!
* @todo deal with other types like objects
* @static only namespace here
*/
class importexport_arrayxml {
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/**
* converts a php array to an xml string
*
* @param mixed $_data
* @param string $_name
* @param DOMElement $_node
* @return string XML string
*/
public static function array2xml ( $_data, $_name = 'root', $_node=null ) {
$returnXML = false;
if ( $_node === null ) {
$_node = new DOMDocument( '1.0', 'utf-8' );
$_node->formatOutput = true;
$returnXML = true;
}
$datatype = gettype( $_data );
switch ( $datatype ) {
case 'array' :
$subnode = new DOMElement( 'entry' );
$_node->appendChild( $subnode );
$subnode->setAttribute( 'type', $datatype );
$subnode->setAttribute( 'name' , $_name );
foreach ( $_data as $ikey => $ivalue ) {
self::array2xml( $ivalue, $ikey, $subnode );
}
break;
default :
switch ( $datatype ) {
case 'boolean' :
$data = $_data !== false ? 'TRUE' : 'FALSE';
break;
default:
$data = &$_data;
}
$subnode = new DOMElement( 'entry' , $data );
$_node->appendChild( $subnode );
$subnode->setAttribute( 'type', $datatype );
$subnode->setAttribute( 'name' , $_name );
break;
}
return $returnXML ? $_node->saveXML() : '';
}
/**
* converts XML string into php array
*
* @param string $_xml
* @return array
*/
public static function xml2array( $_xml ) {
if ( $_xml instanceof DOMElement ) {
$n = &$_xml;
} else {
$n = new DOMDocument;
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$loaded = $n->loadXML($_xml);
if(!$loaded) return array();
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}
$xml_array = array();
foreach($n->childNodes as $nc) {
if ( $nc->nodeType != XML_ELEMENT_NODE ) continue;
$name = $nc->attributes->getNamedItem('name')->nodeValue;
$type = $nc->attributes->getNamedItem('type')->nodeValue;
//echo $nc->nodeType. "(length ): ". $nc->nodeName. " => ". $nc->nodeValue. "; Attriubtes: name=$name, type=$type \n ";
if( $nc->childNodes->length >= 2) {
$xml_array[$name] = self::xml2array($nc);
} else {
switch ( $type ) {
case 'boolean' :
$value = $nc->nodeValue == 'FALSE' ? false : true;
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break;
default :
$value = $nc->nodeValue;
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}
$xml_array[$name] = $value;
}
}
return $xml_array;
}
}
?>