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<?php
class XMLNode {
private $name;
private $attributes;
private $childNodes = array();
private $parentNode;
function XMLNode( $name, array $attributes, $parent=null ) {
$this->name = $name;
$this->attributes = $attributes;
$this->parentNode = $parent;
}
function getParentNode() {
return $this->parentNode;
}
function nChildNodes() {
return sizeof($this->childNodes);
}
function getChildNode( $i ) {
return $this->childNodes[$i];
}
function setChildNode( XMLNode $node ) {
$this->childNodes[] = $node;
}
function getName() {
return $this->name;
}
function getAttribute( $name ) {
$name = strtoupper($name);
return isset($this->attributes[$name]) ? $this->attributes[$name] :
"";
}
function setText( $text ) {
$this->attributes['TEXT'] = $text;
}
function getText() {
return $this->attributes['TEXT'];
}
}
class xmlParser {
private $_parser;
private $_root_node = null;
private $_curr_node = null;
public function xmlParser() {
$this->_parser = xml_parser_create();
xml_set_object($this->_parser, $this);
xml_set_default_handler( $this->_parser, 'text_handler' );
xml_set_element_handler( $this->_parser,
'start_element_handler',
'end_element_handler' );
}
public function destroy() {
xml_parser_free($this->_parser);
}
public function lastError() {
return $this->_last_error;
}
public function parse( $data ) {
if ( !xml_parse( $this->_parser, $data ) ) {
$this->_last_error = xml_get_current_line_number($this->_parser) . ": ". xml_error_string($this->_parser);
return false;
}
return $this->_root_node;
}
private function start_element_handler( $parser, $name, $attribs ) {
if ( !$this->_root_node ) {
$new_node = new XMLNode( $name, $attribs );
$this->_root_node = $new_node;
$this->_curr_node = $new_node;
}
else {
$old_node = $this->_curr_node;
$new_node = new XMLNode( $name, $attribs, $old_node );
$old_node->setChildNode( $new_node );
$this->_curr_node = $new_node;
}
}
private function text_handler( $parser, $text ) {
if ( $this->_curr_node )
$this->_curr_node->setText( $text );
}
private function end_element_handler( $parser, $name ) {
if ( $this->_root_node ) {
$this->_curr_node = $this->_curr_node->getParentNode();
}
}
}
?>
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