Class CachingIterator

IteratorIterator implements Iterator, Traversable, OuterIterator

CachingIterator implements ArrayAccess, Countable

PHP Extension: SPL
Documented at php.net

Methods summary
`public`	# `__construct( Iterator $iterator, $flags )` Overrides `IteratorIterator::__construct()`
`public`	# `rewind( )` Overrides `IteratorIterator::rewind()`
`public`	# `valid( )` Overrides `IteratorIterator::valid()`
`public`	# `key( )` Overrides `IteratorIterator::key()`
`public`	# `current( )` Overrides `IteratorIterator::current()`
`public`	# `next( )` Overrides `IteratorIterator::next()`
`public`	# `hasNext( )`
`public`	# `__toString( )`
`public`	# `getInnerIterator( )` Overrides `IteratorIterator::getInnerIterator()`
`public`	# `getFlags( )`
`public`	# `setFlags( $flags )`
`public`	# `offsetGet( $index )` Implementation of `ArrayAccess::offsetGet()`
`public`	# `offsetSet( $index, $newval )` Implementation of `ArrayAccess::offsetSet()`
`public`	# `offsetUnset( $index )` Implementation of `ArrayAccess::offsetUnset()`
`public`	# `offsetExists( $index )` Implementation of `ArrayAccess::offsetExists()`
`public`	# `getCache( )`
`public`	# `count( )` Implementation of `Countable::count()`