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<?php
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/**
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* Project: XMLParser: A library for parsing XML feeds
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* File: XMLParser.class.php
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* @link http://www.phpinsider.com/php/code/XMLParser/
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* @copyright 2004-2005 New Digital Group, Inc.
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* @author Monte Ohrt <monte at newdigitalgroup dot com>
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* @package XMLParser
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* @version 1.0-dev
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*/
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class XMLParser{
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/**
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* holds the expat object
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*
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* @var obj
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*/
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var $xml_obj = null;
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/**
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* holds the output array
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*
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* @var array
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*/
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var $output = array();
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/**
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* the XML file character set
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*
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* @var array
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*/
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var $char_set = 'UTF-8';
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/**#@-*/
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/**
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* The class constructor.
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*/
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function __construct(){ }
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/**
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* parse the XML file (or URL)
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*
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* @param string $path the XML file path, or URL
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*/
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function parse($path){
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$this->output = array();
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$this->xml_obj = xml_parser_create($this->char_set);
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xml_set_object($this->xml_obj,$this);
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xml_set_character_data_handler($this->xml_obj, 'dataHandler');
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xml_set_element_handler($this->xml_obj, "startHandler", "endHandler");
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if (!($fp = fopen($path, "r"))) {
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die("Cannot open XML data file: $path");
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return false;
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}
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while ($data = fread($fp, 4096)) {
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if (!xml_parse($this->xml_obj, $data, feof($fp))) {
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die(sprintf("XML error: %s at line %d",
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xml_error_string(xml_get_error_code($this->xml_obj)),
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xml_get_current_line_number($this->xml_obj)));
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xml_parser_free($this->xml_obj);
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}
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}
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return $this->output;
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}
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/**
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* define the start tag handler
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*
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* @param obj $parser the expat parser object
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* @param string $name the XML tag name
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* @param array $attribs the XML tag attributes
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*/
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function startHandler($parser, $name, $attribs){
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$_content = array('name' => $name);
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if(!empty($attribs))
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$_content['attrs'] = $attribs;
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array_push($this->output, $_content);
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}
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/**
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* define the tag data handler
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*
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* @param obj $parser the expat parser object
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* @param string $data the XML data
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*/
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function dataHandler($parser, $data){
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if(!empty($data)) {
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$_output_idx = count($this->output) - 1;
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if(!isset($this->output[$_output_idx]['content']))
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$this->output[$_output_idx]['content'] = $data;
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else
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$this->output[$_output_idx]['content'] .= $data;
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}
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}
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/**
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* define the end tag handler
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*
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* @param obj $parser the expat parser object
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* @param string $name the XML tag name
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*/
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function endHandler($parser, $name){
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if(count($this->output) > 1) {
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$_data = array_pop($this->output);
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$_output_idx = count($this->output) - 1;
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$this->output[$_output_idx]['child'][] = $_data;
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}
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}
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}
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?>
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