Bug #66359 [NEW]: Corrupt implementation of Traversable in DOMNodeList, when created by DOMXPath

From: r dot wilczek at web-appz dot de Operating system: Linux PHP version: 5.5.7 Package: DOM XML related Bug Type: Bug Bug description:Corrupt implementation of Traversable in DOMNodeList, when created by DOMXPath Description: ------------ A DOMNodeList created by evaluating a DOMXPath is not correctly traversable. Equivalent instances of DOMNodeList created by getElementsByTagName() etc. do not have this problem. The example below creates equivalent nodelists and shows the incorrect iteration of the one created by evaluating an XPath-expression. Test script: --------------- function printList(\DOMNodeList $list) { foreach ($list as $outer) { /* @var $outer \DOMNode */ echo 'outer: ' . $outer->nodeValue . PHP_EOL; foreach ($list as $inner) { /* @var $inner \DOMNode */ echo ' inner: ' . $inner->nodeValue . PHP_EOL; } } } /** * @return DOMNodeList */ function getByXpath(\DOMDocument $dom) { return (new \DOMXPath($dom))->evaluate('item'); } /** * @return DOMNodeList */ function getByTagName(\DOMDocument $dom) { return $dom->getElementsByTagName('item'); } $xml = <<< XML <root> <item>1</item> <item>2</item> <item>3</item> </root> XML; $dom = new \DOMDocument; $dom->loadXml($xml); printList(getByTagName($dom)); echo '-------------' . PHP_EOL; printList(getByXpath($dom)); Expected result: ---------------- outer: 1 inner: 1 inner: 2 inner: 3 outer: 2 inner: 1 inner: 2 inner: 3 outer: 3 inner: 1 inner: 2 inner: 3 ------------- outer: 1 inner: 1 inner: 2 inner: 3 outer: 2 inner: 1 inner: 2 inner: 3 outer: 3 inner: 1 inner: 2 inner: 3 Actual result: -------------- outer: 1 inner: 1 inner: 2 inner: 3 outer: 2 inner: 1 inner: 2 inner: 3 outer: 3 inner: 1 inner: 2 inner: 3 ------------- outer: 1 inner: 1 inner: 2 inner: 3 -- Edit bug report at https://bugs.php.net/bug.php?id=66359&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=66359&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=66359&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=66359&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=66359&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=66359&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=66359&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=66359&r=needscript Try newer version: https://bugs.php.net/fix.php?id=66359&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=66359&r=support Expected behavior: https://bugs.php.net/fix.php?id=66359&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=66359&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=66359&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=66359&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=66359&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=66359&r=dst IIS Stability: https://bugs.php.net/fix.php?id=66359&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=66359&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=66359&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=66359&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=66359&r=mysqlcfg