<?php /** * PEAR_XMLParser * * PHP versions 4 and 5 * * @category pear * @package PEAR * @author Greg Beaver <cellog@php.net> * @author Stephan Schmidt (original XML_Unserializer code) * @copyright 1997-2009 The Authors * @license http://opensource.org/licenses/bsd-license New BSD License * @link http://pear.php.net/package/PEAR * @since File available since Release 1.4.0a1 */ /** * Parser for any xml file * @category pear * @package PEAR * @author Greg Beaver <cellog@php.net> * @author Stephan Schmidt (original XML_Unserializer code) * @copyright 1997-2009 The Authors * @license http://opensource.org/licenses/bsd-license New BSD License * @version Release: 1.10.16 * @link http://pear.php.net/package/PEAR * @since Class available since Release 1.4.0a1 */ class PEAR_XMLParser { /** * unserilialized data * @var string $_serializedData */ var $_unserializedData = null; /** * name of the root tag * @var string $_root */ var $_root = null; /** * stack for all data that is found * @var array $_dataStack */ var $_dataStack = array(); /** * stack for all values that are generated * @var array $_valStack */ var $_valStack = array(); /** * current tag depth * @var int $_depth */ var $_depth = 0; /** * The XML encoding to use * @var string $encoding */ var $encoding = 'ISO-8859-1'; /** * @return array */ function getData() { return $this->_unserializedData; } /** * @param string xml content * @return true|PEAR_Error */ function parse($data) { if (!extension_loaded('xml')) { include_once 'PEAR.php'; return PEAR::raiseError("XML Extension not found", 1); } $this->_dataStack = $this->_valStack = array(); $this->_depth = 0; if ( strpos($data, 'encoding="UTF-8"') || strpos($data, 'encoding="utf-8"') || strpos($data, "encoding='UTF-8'") || strpos($data, "encoding='utf-8'") ) { $this->encoding = 'UTF-8'; } $xp = xml_parser_create($this->encoding); xml_parser_set_option($xp, XML_OPTION_CASE_FOLDING, 0); xml_set_object($xp, $this); xml_set_element_handler($xp, 'startHandler', 'endHandler'); xml_set_character_data_handler($xp, 'cdataHandler'); if (!xml_parse($xp, $data)) { $msg = xml_error_string(xml_get_error_code($xp)); $line = xml_get_current_line_number($xp); xml_parser_free($xp); include_once 'PEAR.php'; return PEAR::raiseError("XML Error: '$msg' on line '$line'", 2); } xml_parser_free($xp); return true; } /** * Start element handler for XML parser * * @access private * @param object $parser XML parser object * @param string $element XML element * @param array $attribs attributes of XML tag * @return void */ function startHandler($parser, $element, $attribs) { $this->_depth++; $this->_dataStack[$this->_depth] = null; $val = array( 'name' => $element, 'value' => null, 'type' => 'string', 'childrenKeys' => array(), 'aggregKeys' => array() ); if (count($attribs) > 0) { $val['children'] = array(); $val['type'] = 'array'; $val['children']['attribs'] = $attribs; } array_push($this->_valStack, $val); } /** * post-process data * * @param string $data * @param string $element element name */ function postProcess($data, $element) { return trim($data); } /** * End element handler for XML parser * * @access private * @param object XML parser object * @param string * @return void */ function endHandler($parser, $element) { $value = array_pop($this->_valStack); $data = $this->postProcess($this->_dataStack[$this->_depth], $element); // adjust type of the value switch (strtolower($value['type'])) { // unserialize an array case 'array': if ($data !== '') { $value['children']['_content'] = $data; } $value['value'] = isset($value['children']) ? $value['children'] : array(); break; /* * unserialize a null value */ case 'null': $data = null; break; /* * unserialize any scalar value */ default: settype($data, $value['type']); $value['value'] = $data; break; } $parent = array_pop($this->_valStack); if ($parent === null) { $this->_unserializedData = &$value['value']; $this->_root = &$value['name']; return true; } // parent has to be an array if (!isset($parent['children']) || !is_array($parent['children'])) { $parent['children'] = array(); if ($parent['type'] != 'array') { $parent['type'] = 'array'; } } if (!empty($value['name'])) { // there already has been a tag with this name if (in_array($value['name'], $parent['childrenKeys'])) { // no aggregate has been created for this tag if (!in_array($value['name'], $parent['aggregKeys'])) { if (isset($parent['children'][$value['name']])) { $parent['children'][$value['name']] = array($parent['children'][$value['name']]); } else { $parent['children'][$value['name']] = array(); } array_push($parent['aggregKeys'], $value['name']); } array_push($parent['children'][$value['name']], $value['value']); } else { $parent['children'][$value['name']] = &$value['value']; array_push($parent['childrenKeys'], $value['name']); } } else { array_push($parent['children'],$value['value']); } array_push($this->_valStack, $parent); $this->_depth--; } /** * Handler for character data * * @access private * @param object XML parser object * @param string CDATA * @return void */ function cdataHandler($parser, $cdata) { $this->_dataStack[$this->_depth] .= $cdata; } }