--TEST-- IteratorAggregate::getIterator bad return type --FILE-- <?php class bad1 implements IteratorAggregate { function getIterator() { return null; } } class bad2 implements IteratorAggregate { function getIterator() { return new stdClass; } } class bad3 implements IteratorAggregate { function getIterator() { return 1; } } class bad4 implements IteratorAggregate { function getIterator() { return array(1,2,3); } } function f($className) { try { foreach (new $className as $k=>$v) { echo "$k => $v\n"; } } catch (Exception $e) { echo $e->getLine() . ": " . $e->getMessage() ."\n"; } } f("bad1"); f("bad2"); f("bad3"); f("bad4"); ?> ===DONE=== --EXPECTF-- 30: Objects returned by bad1::getIterator() must be traversable or implement interface Iterator 30: Objects returned by bad2::getIterator() must be traversable or implement interface Iterator 30: Objects returned by bad3::getIterator() must be traversable or implement interface Iterator 30: Objects returned by bad4::getIterator() must be traversable or implement interface Iterator ===DONE===