Interface Traversable

Direct known implementers

ArrayIterator, ArrayObject, Iterator, IteratorAggregate, IteratorIterator, OuterIterator, RecursiveIterator, SeekableIterator, SplObjectStorage

Indirect known implementers

CachingIterator, FilterIterator, NHashtable, NHtml, NInstanceFilterIterator, NMultiRouter, NRecursiveComponentIterator, NRules, NSessionNamespace, NSet, NSmartCachingIterator, RecursiveArrayIterator, ICollection, IList, IMap, ISet, NArrayList, NCollection, NConfig, NGenericRecursiveIterator

PHP Extension: Core
Documented at php.net