Bug #68153 [NEW]: Iteration error, if use object with ArrayAccess

From: zhuk2205 at gmail dot com Operating system: Mac OS PHP version: 5.5.17 Package: SPL related Bug Type: Bug Bug description:Iteration error, if use object with ArrayAccess Description: ------------ If create object and implement it ArrayAccess and Iterator interfaces, we have a problem with remove elements from storage with use ArrayAccess. Likely PHP \Iterator system not find "active" key after remove active element, and use key as active next key. As result, in next iteration will be invalid key. Test script: --------------- <?php class MyModel { } class Collection implements \ArrayAccess, \Iterator { private $storage = array(); public function offsetExists($offset) { return isset($this->storage[$offset]); } public function offsetGet($offset) { return $this->storage[$offset]; } public function offsetSet($offset, $value) { if (null === $offset) { $this->storage[] = $value; } else { $this->storage[$offset] = $value; } } public function offsetUnset($offset) { unset ($this->storage[$offset]); } public function current() { return current($this->storage); } public function next() { return next($this->storage); } public function key() { return key($this->storage); } public function valid() { return key($this->storage) !== null; } public function rewind() { reset($this->storage); } public function count() { return count($this->storage); } } class MyCollectionModel { private $collection; public function __construct() { $this->collection = new Collection(); } public function addElement($element) { $this->collection[] = $element; } public function removeMyModels() { foreach ($this->collection as $index => $value) { if ($value instanceof MyModel) { unset ($this->collection[$index]); } } } } // Create collection $myCollection = new MyCollectionModel(); // Add own models to collections for ($i = 0; $i < 10; $i++) { $myCollection->addElement(new MyModel()); } // Remove owl models from collection $myCollection->removeMyModels(); // So, not all elements removed print_r($myCollection); Expected result: ---------------- Remove all "MyModel" instances from collection. Actual result: -------------- Not all removed objects. -- Edit bug report at https://bugs.php.net/bug.php?id=68153&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=68153&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=68153&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=68153&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=68153&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=68153&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=68153&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=68153&r=needscript Try newer version: https://bugs.php.net/fix.php?id=68153&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=68153&r=support Expected behavior: https://bugs.php.net/fix.php?id=68153&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=68153&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=68153&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=68153&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=68153&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=68153&r=dst IIS Stability: https://bugs.php.net/fix.php?id=68153&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=68153&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=68153&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=68153&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=68153&r=mysqlcfg