From: amfriedman at gmail dot com Operating system: Unbuntu 11 PHP version: 5.3.25 Package: SimpleXML related Bug Type: Bug Bug description:SimpleXMLIterator unintentionally rewinds to beginning
Description: ------------ --- >From manual page: http://php.net/manual/en/class.simplexmliterator.php --- When under a for-loop and iterating through a SimpleXMLIterator object, merely reading from a variable that stores the children being iterated will cause a rewind to the beginning of the object within which you are looping. Test script: --------------- $xml = new SimpleXMLIterator($xml_str); $nodes = $nodes_for_lookup = $xml->children(); $n_node = -1; for($nodes->rewind(); $nodes->valid(); $nodes->next()) { $node = $nodes->current(); $n_node++; // This rewinds this loop $value_to_check = $nodes[$n_node+1]; // This also rewinds the loop $value_to_check = $nodes_for_lookup[$n_node+1]; // This does NOT rewind the loop (expected behavior) $nodes_now = $xml->children(); $value_to_check = $nodes_now[$n_node+1]; } Expected result: ---------------- The loop should NOT be rewound! Merely reading from the object should not affect the iterator's pointer whatsoever. Actual result: -------------- The loop is getting rewound due to reading a specific key-based item in the iterator object/array. -- Edit bug report at https://bugs.php.net/bug.php?id=64813&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=64813&r=trysnapshot54 Try a snapshot (PHP 5.3): https://bugs.php.net/fix.php?id=64813&r=trysnapshot53 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=64813&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=64813&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=64813&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=64813&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=64813&r=needscript Try newer version: https://bugs.php.net/fix.php?id=64813&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=64813&r=support Expected behavior: https://bugs.php.net/fix.php?id=64813&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=64813&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=64813&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=64813&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=64813&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=64813&r=dst IIS Stability: https://bugs.php.net/fix.php?id=64813&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=64813&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=64813&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=64813&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=64813&r=mysqlcfg
