261 lines
7.6 KiB
PHP
261 lines
7.6 KiB
PHP
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<?php
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/**
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* PEAR_FTP
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*
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* PHP versions 4 and 5
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*
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* LICENSE: This source file is subject to version 3.0 of the PHP license
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* that is available through the world-wide-web at the following URI:
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* http://www.php.net/license/3_0.txt. If you did not receive a copy of
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* the PHP License and are unable to obtain it through the web, please
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* send a note to license@php.net so we can mail you a copy immediately.
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*
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* @category pear
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* @package PEAR
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* @author Greg Beaver <cellog@php.net>
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* @author Stephan Schmidt (original XML_Unserializer code)
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* @copyright 1997-2006 The PHP Group
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* @license http://www.php.net/license/3_0.txt PHP License 3.0
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* @version CVS: $Id: XMLParser.php,v 1.11 2006/01/06 04:47:36 cellog Exp $
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* @link http://pear.php.net/package/PEAR
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* @since File available since Release 1.4.0a1
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*/
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/**
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* Parser for any xml file
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* @category pear
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* @package PEAR
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* @author Greg Beaver <cellog@php.net>
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* @author Stephan Schmidt (original XML_Unserializer code)
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* @copyright 1997-2006 The PHP Group
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* @license http://www.php.net/license/3_0.txt PHP License 3.0
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* @version Release: 1.4.11
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* @link http://pear.php.net/package/PEAR
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* @since Class available since Release 1.4.0a1
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*/
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class PEAR_XMLParser
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{
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/**
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* unserilialized data
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* @var string $_serializedData
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*/
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var $_unserializedData = null;
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/**
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* name of the root tag
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* @var string $_root
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*/
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var $_root = null;
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/**
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* stack for all data that is found
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* @var array $_dataStack
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*/
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var $_dataStack = array();
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/**
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* stack for all values that are generated
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* @var array $_valStack
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*/
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var $_valStack = array();
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/**
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* current tag depth
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* @var int $_depth
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*/
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var $_depth = 0;
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/**
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* @return array
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*/
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function getData()
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{
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return $this->_unserializedData;
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}
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/**
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* @param string xml content
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* @return true|PEAR_Error
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*/
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function parse($data)
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{
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if (!extension_loaded('xml')) {
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include_once 'PEAR.php';
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return PEAR::raiseError("XML Extension not found", 1);
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}
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$this->_valStack = array();
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$this->_dataStack = array();
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$this->_depth = 0;
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if (version_compare(phpversion(), '5.0.0', 'lt')) {
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if (strpos($data, 'encoding="UTF-8"')) {
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$data = utf8_decode($data);
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}
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$xp = @xml_parser_create('ISO-8859-1');
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} else {
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if (strpos($data, 'encoding="UTF-8"')) {
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$xp = @xml_parser_create('UTF-8');
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} else {
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$xp = @xml_parser_create('ISO-8859-1');
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}
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}
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xml_parser_set_option($xp, XML_OPTION_CASE_FOLDING, 0);
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xml_set_object($xp, $this);
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xml_set_element_handler($xp, 'startHandler', 'endHandler');
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xml_set_character_data_handler($xp, 'cdataHandler');
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if (!xml_parse($xp, $data)) {
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$msg = xml_error_string(xml_get_error_code($xp));
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$line = xml_get_current_line_number($xp);
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xml_parser_free($xp);
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include_once 'PEAR.php';
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return PEAR::raiseError("XML Error: '$msg' on line '$line'", 2);
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}
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xml_parser_free($xp);
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return true;
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}
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/**
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* Start element handler for XML parser
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*
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* @access private
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* @param object $parser XML parser object
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* @param string $element XML element
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* @param array $attribs attributes of XML tag
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* @return void
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*/
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function startHandler($parser, $element, $attribs)
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{
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$type = 'string';
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$this->_depth++;
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$this->_dataStack[$this->_depth] = null;
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$val = array(
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'name' => $element,
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'value' => null,
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'type' => $type,
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'childrenKeys' => array(),
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'aggregKeys' => array()
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);
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if (count($attribs) > 0) {
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$val['children'] = array();
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$val['type'] = 'array';
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$val['children']['attribs'] = $attribs;
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}
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array_push($this->_valStack, $val);
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}
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/**
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* post-process data
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*
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* @param string $data
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* @param string $element element name
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*/
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function postProcess($data, $element)
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{
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return trim($data);
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}
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/**
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* End element handler for XML parser
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*
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* @access private
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* @param object XML parser object
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* @param string
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* @return void
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*/
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function endHandler($parser, $element)
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{
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$value = array_pop($this->_valStack);
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$data = $this->postProcess($this->_dataStack[$this->_depth], $element);
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// adjust type of the value
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switch(strtolower($value['type'])) {
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/*
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* unserialize an array
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*/
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case 'array':
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if ($data !== '') {
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$value['children']['_content'] = $data;
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}
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if (isset($value['children'])) {
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$value['value'] = $value['children'];
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} else {
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$value['value'] = array();
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}
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break;
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/*
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* unserialize a null value
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*/
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case 'null':
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$data = null;
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break;
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/*
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* unserialize any scalar value
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*/
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default:
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settype($data, $value['type']);
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$value['value'] = $data;
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break;
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}
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$parent = array_pop($this->_valStack);
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if ($parent === null) {
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$this->_unserializedData = &$value['value'];
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$this->_root = &$value['name'];
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return true;
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} else {
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// parent has to be an array
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if (!isset($parent['children']) || !is_array($parent['children'])) {
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$parent['children'] = array();
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if ($parent['type'] != 'array') {
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$parent['type'] = 'array';
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}
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}
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if (!empty($value['name'])) {
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// there already has been a tag with this name
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if (in_array($value['name'], $parent['childrenKeys'])) {
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// no aggregate has been created for this tag
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if (!in_array($value['name'], $parent['aggregKeys'])) {
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if (isset($parent['children'][$value['name']])) {
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$parent['children'][$value['name']] = array($parent['children'][$value['name']]);
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} else {
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$parent['children'][$value['name']] = array();
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}
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array_push($parent['aggregKeys'], $value['name']);
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}
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array_push($parent['children'][$value['name']], $value['value']);
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} else {
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$parent['children'][$value['name']] = &$value['value'];
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array_push($parent['childrenKeys'], $value['name']);
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}
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} else {
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array_push($parent['children'],$value['value']);
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}
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array_push($this->_valStack, $parent);
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}
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$this->_depth--;
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}
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/**
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* Handler for character data
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*
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* @access private
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* @param object XML parser object
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* @param string CDATA
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* @return void
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*/
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function cdataHandler($parser, $cdata)
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{
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$this->_dataStack[$this->_depth] .= $cdata;
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}
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}
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?>
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