【php开源代码栏目提醒】:网学会员,鉴于大家对php开源代码十分关注,论文会员在此为大家搜集整理了“class.xmlschema.php”一文,供大家参考学习!
<?php
/**
* parses an XML Schema, allows access to it's data, other utility methods
* no validation... yet.
* very experimental and limited. As is discussed on XML-DEV, I'm one of the people
* that just doesn't have time to read the spec(s) thoroughly, and just have a couple of trusty
* tutorials I refer to :)
*
* @author Dietrich Ayala <dietrich@ganx4.com>
* @version $Id: class.xmlschema.php,v 1.39 2005/08/04 01:27:42 snichol Exp $
* @access public
*/
class XMLSchema extends nusoap_base {
// files
var $schema = '';
var $xml = '';
// namespaces
var $enclosingNamespaces;
// schema info
var $schemaInfo = array();
var $schemaTargetNamespace = '';
// types, elements, attributes defined by the schema
var $attributes = array();
var $complexTypes = array();
var $complexTypeStack = array();
var $currentComplexType = null;
var $elements = array();
var $elementStack = array();
var $currentElement = null;
var $simpleTypes = array();
var $simpleTypeStack = array();
var $currentSimpleType = null;
// imports
var $imports = array();
// parser vars
var $parser;
var $position = 0;
var $depth = 0;
var $depth_array = array();
var $message = array();
var $defaultNamespace = array();
/**
* constructor
*
* @param string $schema schema document URI
* @param string $xml xml document URI
* @param string $namespaces namespaces defined in enclosing XML
* @access public
*/
function XMLSchema($schema='',$xml='',$namespaces=array()){
parent::nusoap_base();
$this->debug('xmlschema class instantiated, inside constructor');
// files
$this->schema = $schema;
$this->xml = $xml;
// namespaces
$this->enclosingNamespaces = $namespaces;
$this->namespaces = array_merge($this->namespaces, $namespaces);
// parse schema file
if($schema != ''){
$this->debug('initial schema file: '.$schema);
$this->parseFile($schema, 'schema');
}
// parse xml file
if($xml != ''){
$this->debug('initial xml file: '.$xml);
$this->parseFile($xml, 'xml');
}
}
/**
* parse an XML file
*
* @param string $xml, path/URL to XML file
* @param string $type, (schema | xml)
* @return boolean
* @access public
*/
function parseFile($xml,$type){
// parse xml file
if($xml != ""){
$xmlStr = @join("",@file($xml));
if($xmlStr == ""){
$msg = 'Error reading XML from '.$xml;
$this->setError($msg);
$this->debug($msg);
return false;
} else {
$this->debug("parsing $xml");
$this->parseString($xmlStr,$type);
$this->debug("done parsing $xml");
return true;
}
}
return false;
}
/**
* parse an XML string
*
* @param string $xml path or URL
* @param string $type, (schema|xml)
* @access private
*/
function parseString($xml,$type){
// parse
xml string
if($xml != ""){
// Create an XML parser.
$this->parser = xml_parser_create();
// Set the options for parsing the XML data.
xml_parser_set_option($this->parser, XML_OPTION_CASE_FOLDING, 0);
// Set the object for the parser.
xml_set_object($this->parser, $this);
// Set the element handlers for the parser.
if($type == "schema"){
xml_set_element_handler($this->parser, 'schemaStartElement','schemaEndElement');
xml_set_character_data_handler($this->parser,'schemaCharacterData');
} elseif($type == "xml"){
xml_set_element_handler($this->parser, 'xmlStartElement','xmlEndElement');
xml_set_character_data_handler($this->parser,'xmlCharacterData');
}
// Parse the XML file.
if(!xml_parse($this->parser,$xml,true)){
// Display an error message.
$errstr = sprintf('XML error parsing XML schema on line %d: %s',
xml_get_current_line_number($this->parser),
xml_error_string(xml_get_error_code($this->parser))
);
$this->debug($errstr);
$this->debug("XML payload:\n" . $xml);
$this->setError($errstr);
}
xml_parser_free($this->parser);
} else{
$this->debug('no xml passed to parseString()!!');
$this->setError('no xml passed to parseString()!!');
}
}
/**
* start-element handler
*
* @param string $parser XML parser object
* @param string $name element name
* @param string $attrs associative array of attributes
* @access private
*/
function schemaStartElement($parser, $name, $attrs) {
// position in the total number of elements, starting from 0
$pos = $this->position++;
$depth = $this->depth++;
// set self as current value for this depth
$this->depth_array[$depth] = $pos;
$this->messag