joomla_test/libraries/joomla/registry/format/xml.php

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2020-01-02 22:20:31 +07:00
<?php
/**
* @package Joomla.Platform
* @subpackage Registry
*
* @copyright Copyright (C) 2005 - 2013 Open Source Matters, Inc. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE
*/
defined('JPATH_PLATFORM') or die;
/**
* XML format handler for JRegistry.
*
* @package Joomla.Platform
* @subpackage Registry
* @since 11.1
*/
class JRegistryFormatXML extends JRegistryFormat
{
/**
* Converts an object into an XML formatted string.
* - If more than two levels of nested groups are necessary, since INI is not
* useful, XML or another format should be used.
*
* @param object $object Data source object.
* @param array $options Options used by the formatter.
*
* @return string XML formatted string.
*
* @since 11.1
*/
public function objectToString($object, $options = array())
{
$rootName = (isset($options['name'])) ? $options['name'] : 'registry';
$nodeName = (isset($options['nodeName'])) ? $options['nodeName'] : 'node';
// Create the root node.
$root = simplexml_load_string('<' . $rootName . ' />');
// Iterate over the object members.
$this->getXmlChildren($root, $object, $nodeName);
return $root->asXML();
}
/**
* Parse a XML formatted string and convert it into an object.
*
* @param string $data XML formatted string to convert.
* @param array $options Options used by the formatter.
*
* @return object Data object.
*
* @since 11.1
*/
public function stringToObject($data, array $options = array())
{
$obj = new stdClass;
// Parse the XML string.
$xml = simplexml_load_string($data);
foreach ($xml->children() as $node)
{
$obj->$node['name'] = $this->getValueFromNode($node);
}
return $obj;
}
/**
* Method to get a PHP native value for a SimpleXMLElement object. -- called recursively
*
* @param object $node SimpleXMLElement object for which to get the native value.
*
* @return mixed Native value of the SimpleXMLElement object.
*
* @since 11.1
*/
protected function getValueFromNode($node)
{
switch ($node['type'])
{
case 'integer':
$value = (string) $node;
return (int) $value;
break;
case 'string':
return (string) $node;
break;
case 'boolean':
$value = (string) $node;
return (bool) $value;
break;
case 'double':
$value = (string) $node;
return (float) $value;
break;
case 'array':
$value = array();
foreach ($node->children() as $child)
{
$value[(string) $child['name']] = $this->getValueFromNode($child);
}
break;
default:
$value = new stdClass;
foreach ($node->children() as $child)
{
$value->$child['name'] = $this->getValueFromNode($child);
}
break;
}
return $value;
}
/**
* Method to build a level of the XML string -- called recursively
*
* @param SimpleXMLElement $node SimpleXMLElement object to attach children.
* @param object $var Object that represents a node of the XML document.
* @param string $nodeName The name to use for node elements.
*
* @return void
*
* @since 11.1
*/
protected function getXmlChildren(SimpleXMLElement $node, $var, $nodeName)
{
// Iterate over the object members.
foreach ((array) $var as $k => $v)
{
if (is_scalar($v))
{
$n = $node->addChild($nodeName, $v);
$n->addAttribute('name', $k);
$n->addAttribute('type', gettype($v));
}
else
{
$n = $node->addChild($nodeName);
$n->addAttribute('name', $k);
$n->addAttribute('type', gettype($v));
$this->getXmlChildren($n, $v, $nodeName);
}
}
}
}