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This problem has just started appearing recently in the xmldocument.php file that is part of the UPSXML shipping contribution. I know that it's appearing because an object doesn't appear to be registered, but it happens randomly and I'm not sure what to do to correct it (or why it is random, rather than consistent if the code is poorly written).
The error is:
Quote
Fatal error: Call to a member function on a non-object in /home/farmex/public_html/shop/includes/classes/xmldocument.php on line 57
Quote
if ($pathArray[0] == $this->root->getName()) {
<?php
/*
$Id: xmldocument.php,v 1.5 2003/06/27 01:03:03 torinwalker Exp $
Written by Torin Walker
torinwalker@rogers.com
Generic XML Document support for when there is none.
Copyright(c) 2003 by Torin Walker, All rights reserved.
Released under the GNU General Public License
*/
define("ELEMENT", 0);
define("TEXTELEMENT", 1);
class XMLDocument {
var $root;
var $children;
function XMLDocument() {
}
function createElement($name) {
$node = new Node();
$node->setName($name);
$node->setType(ELEMENT);
return $node;
}
function createTextElement($text) {
$node = new Node();
$node->setType(TEXTELEMENT);
$node->setValue($text);
return $node;
}
function getRoot() {
return $this->root;
}
function setRoot($node) {
$this->root = $node;
}
function toString() {
if ($this->root) {
return $this->root->toString();
} else {
return "DOCUMENT ROOT NOT SET";
}
}The problem section... function getValueByPath($path) {
$pathArray = split("/", $path);
if ($pathArray[0] == $this->root->getName()) {
//print_r("Looking for " . $pathArray[0] . "<br>");
array_shift($pathArray);
$newPath = implode("/", $pathArray);
return $this->root->getValueByPath($newPath);
}
}... and the balance of the file}
class Node {
var $name;
var $type;
var $text;
var $parent;
var $children;
var $attributes;
function Node() {
$this->children = array();
$this->attributes = array();
}
function getName() {
return $this->name;
}
function setName($name) {
$this->name = $name;
}
function setParent(&$node) {
$this->parent =& $node;
}
function &getParent() {
return $this->parent;
}
function &getChildren() {
return $this->children;
}
function getType() {
return $this->type;
}
function setType($type) {
$this->type = $type;
}
function getElementByName($name) {
for ($i = 0; $i < count($this->children); $i++) {
if ($this->children[$i]->getType() == ELEMENT) {
if ($this->children[$i]->getName() == $name) {
return $this->children[$i];
}
}
}
return null;
}
function getElementsByName($name) {
$elements = array();
for ($i = 0; $i < count($this->children); $i++) {
if ($this->children[$i]->getType() == ELEMENT) {
if ($this->children[$i]->getName() == $name) {
$elements[] = $this->children[$i];
}
}
}
return $elements;
}
function getValueByPath($path) {
$pathArray = split('/', $path);
$node = $this;
for ($i = 0; $i < count($pathArray); $i++) {
//print_r("Looking for " . $pathArray[$i] ."<br>");
if ($node->getChildren()) {
for ($j = 0; $j < count($node->getChildren()); $j++) {
if ($node->children[$j]->getType() == ELEMENT) {
if ($node->children[$j]->getName() == $pathArray[$i]) {
//print_r("Found " . $pathArray[$i] ."<br>");
$node = $node->children[$j];
}
}
}
}
}
return $node->getValue();
}
function getText() {
return $this->text();
}
function setValue($text) {
$this->text = $text;
}
function getValue() {
$value = NULL;
if ($this->getType() == ELEMENT) {
for ($i = 0; $i < count($this->children); $i++) {
$value .= $this->children[$i]->getValue();
}
} elseif ($this->getType() == TEXTELEMENT) {
$value .= $this->text;
}
return $value;
}
function setAttribute($name, $value) {
$attributes[$name] = $value;
}
function getAttribute($name) {
return $attributes[$name];
}
function addNode(&$node) {
$this->children[] =& $node;
$node->parent =& $this;
}
function parentToString($node) {
while($node->parent) {
//print_r("Node " . $node->name . " has parent<br>");
$node = $node->parent;
}
//print_r("Node contents from root: " . $node->toString() . "<br>");
}
function toString() {
$string = NULL;
//print_r("toString child count " . $this->name . " contains " . count($this->children) . "<br>");
if ($this->type == ELEMENT) {
$string .= '{' . $this->name . '}';
for ($i = 0; $i < count($this->children); $i++) {
$string .= $this->children[$i]->toString();
}
$string .= '{/' . $this->name . '}';
} else {
$string .= $this->getValue();
}
return $string;
}
}
class XMLParser {
var $xp;
var $document;
var $current;
var $error;
// Constructor
function XMLParser() {
$this->document = new XMLDocument();
$this->error = array();
}
function setDocument($document) {
$this->document = $document;
}
function getDocument() {
return $this->document;
}
// Destructor
function destruct(){
xml_parser_free($this->xp);
}
// return 1 for an error, 0 for no error
function hasErrors() {
if (sizeof($this->error) > 0) {
return 1;
} else {
return 0;
}
}
// return array of error messages
function getError() {
return $this->error;
}
// process xml start tag
function startElement($xp, $name, $attrs) {
//print_r("Found Start Tag: " . $name . "<br>");
$node =& $this->document->createElement($name);
if ($this->document->getRoot()) {
$this->current->addNode($node);
} else {
$this->document->root =& $node;
}
$this->current =& $node;
}
// process xml end tag
function endElement($xp, $name){
//print_r("Found End Tag: " . $name . "<br>");
if ($this->current->getParent()) {
$this->current =& $this->current->getParent();
}
}
// process data between xml tags
function dataHandler($xp, $text) {
//print_r("Adding Data: \"" . $text . "\"<br>");
$node =& $this->document->createTextElement($text);
$this->current->addNode($node);
}
// parse xml document from string
function parse($xmlString) {
if(!($this->xp = @xml_parser_create())) {
$this->error['description'] = 'Could not create xml parser';
}
if(!$this->hasErrors()) {
if(!@xml_set_object($this->xp, $this)) {
$this->error['description'] = 'Could not set xml parser for object';
}
}
if(!$this->hasErrors()) {
if(!@xml_set_element_handler($this->xp, 'startElement', 'endElement')) {
$this->error['description'] = 'Could not set xml element handler';
}
}
if(!$this->hasErrors()) {
if(!@xml_set_character_data_handler($this->xp, 'dataHandler')) {
$this->error['description'] = 'Could not set xml character handler';
}
}
xml_parser_set_option($this->xp, XML_OPTION_CASE_FOLDING, false);
if (!$this->hasErrors()) {
if(!@xml_parse($this->xp, $xmlString)) {
$this->error['description'] = xml_error_string(xml_get_error_code($this->xp));
$this->error['line'] = xml_get_current_line_number($this->xp);
}
}
}
}
?>
