PHP XML解析类
<?php /* +----------------------------------+ | SofeeFramework for PHP 4 | +----------------------------------+ | Copyright (c) 2004-2005 Sofee Development Team.(http://www.sofee.cn) | +----------------------------------+ | This source file is subject to version 1.00 of the Sofee license, | | that is bundled with this package in the file LICENSE, and is | | available through the world-wide-web at the following url: | | http://www.sofee.cn/license/1_00.txt. | | If you did not receive a copy of the Sofee license and are unable to | | obtain it through the world-wide-web, please send a note to | | license@sofee.cn so we can mail you a copy immediately. | +----------------------------------+ | Author: Justin Wu <ezdevelop@gmail.com> | +----------------------------------+ */ /* $Id: SofeeXmlParser.php,v 1.3 2005/05/30 06:30:14 wenlong Exp $ */ /** * Sofee XML Parser class - This is an XML parser based on PHP's "xml" extension. * * The SofeeXmlParser class provides a very simple and easily usable toolset to convert XML * to an array that can be processed with array iterators. * * @package SofeeFramework * @access public * @version $Revision: 1.1 $ * @author Justin Wu <wenlong@php.net> * @homepage http://www.sofee.cn * @copyright Copyright (c) 2004-2005 Sofee Development Team.(http://www.sofee.cn) * @since 2005-05-30 * @see PEAR:XML_Parser | SimpleXML extension */ class SofeeXmlParser { /** * XML parser handle * * @var resource * @see xml_parser_create() */ var $parser; /** * source encoding * * @var string */ var $srcenc; /** * target encoding * * @var string */ var $dstenc; /** * the original struct * * @access private * @var array */ var $_struct = array(); /** * Constructor * * @access public * @param mixed [$srcenc] source encoding * @param mixed [$dstenc] target encoding * @return void * @since */ function SofeeXmlParser($srcenc = null, $dstenc = null) { $this->srcenc = $srcenc; $this->dstenc = $dstenc; // initialize the variable. $this->parser = null; $this->_struct = array(); } /** * Free the resources * * @access public * @return void **/ function free() { if (isset($this->parser) && is_resource($this->parser)) { xml_parser_free($this->parser); unset($this->parser); } } /** * Parses the XML file * * @access public * @param string [$file] the XML file name * @return void * @since */ function parseFile($file) { $data = @file_get_contents($file) or die("Can't open file $file for reading!"); $this->parseString($data); } /** * Parses a string. * * @access public * @param string [$data] XML data * @return void */ function parseString($data) { if ($this->srcenc === null) { $this->parser = @xml_parser_create() or die('Unable to create XML parser resource.'); } else { $this->parser = @xml_parser_create($this->srcenc) or die('Unable to create XML parser resource with '. $this->srcenc .' encoding.'); } if ($this->dstenc !== null) { @xml_parser_set_option($this->parser, XML_OPTION_TARGET_ENCODING, $this->dstenc) or die('Invalid target encoding'); } xml_parser_set_option($this->parser, XML_OPTION_CASE_FOLDING, 0); // lowercase tags xml_parser_set_option($this->parser, XML_OPTION_SKIP_WHITE, 1); // skip empty tags if (!xml_parse_into_struct($this->parser, $data, &$this->_struct)) { printf("XML error: %s at line %d", xml_error_string(xml_get_error_code($this->parser)), xml_get_current_line_number($this->parser) ); $this->free(); exit(); } $this->_count = count($this->_struct); $this->free(); } /** * return the data struction * * @access public * @return array */ function getTree() { $i = 0; $tree = array(); $tree = $this->addNode( $tree, $this->_struct[$i]['tag'], (isset($this->_struct[$i]['value'])) ? $this->_struct[$i]['value'] : '', (isset($this->_struct[$i]['attributes'])) ? $this->_struct[$i]['attributes'] : '', $this->getChild($i) ); unset($this->_struct); return ($tree); } /** * recursion the children node data * * @access public * @param integer [$i] the last struct index * @return array */ function getChild(&$i) { // contain node data $children = array(); // loop while (++$i < $this->_count) { // node tag name $tagname = $this->_struct[$i]['tag']; $value = isset($this->_struct[$i]['value']) ? $this->_struct[$i]['value'] : ''; $attributes = isset($this->_struct[$i]['attributes']) ? $this->_struct[$i]['attributes'] : ''; switch ($this->_struct[$i]['type']) { case 'open': // node has more children $child = $this->getChild($i); // append the children data to the current node $children = $this->addNode($children, $tagname, $value, $attributes, $child); break; case 'complete': // at end of current branch $children = $this->addNode($children, $tagname, $value, $attributes); break; case 'cdata': // node has CDATA after one of it's children $children['value'] .= $value; break; case 'close': // end of node, return collected data return $children; break; } } //return $children; } /** * Appends some values to an array * * @access public * @param array [$target] * @param string [$key] * @param string [$value] * @param array [$attributes] * @param array [$inner] the children * @return void * @since */ function addNode($target, $key, $value = '', $attributes = '', $child = '') { if (!isset($target[$key]['value']) && !isset($target[$key][0])) { if ($child != '') { $target[$key] = $child; } if ($attributes != '') { foreach ($attributes as $k => $v) { $target[$key][$k] = $v; } } $target[$key]['value'] = $value; } else { if (!isset($target[$key][0])) { // is string or other $oldvalue = $target[$key]; $target[$key] = array(); $target[$key][0] = $oldvalue; $index = 1; } else { // is array $index = count($target[$key]); } if ($child != '') { $target[$key][$index] = $child; } if ($attributes != '') { foreach ($attributes as $k => $v) { $target[$key][$index][$k] = $v; } } $target[$key][$index]['value'] = $value; } return $target; } }?>?实例一 (解析XML文件)：
<?php$file="http://dict.cn/ws.php?q=content";require_once('SofeeXmlParser.php');$xml = new SofeeXmlParser();$xml->parseFile($file); $tree = $xml->getTree();unset($xml);print "<pre>";foreach($tree as $val){echo $val['key']['value'];echo $val['lang']['value'];}print "</pre>";?>实例二 (解析XML字符串)：
<?php$str = '<?xml version="1.0" encoding="gb2312"?><root> <info value="adevy"> <name>adevy001</name> <sex>男</sex> </info> <info value="adevy"> <name>adevy001</name> <sex>男</sex> </info></root>';require_once('SofeeXmlParser.php');$xml = new SofeeXmlParser();$xml->parseString($str);$tree = $xml->getTree();unset($xml);print "<pre>";print_r($tree);print "</pre>";?> ??