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 )`
`public`	# `rewind( )` Implementation of `Iterator::rewind`
`public`	# `valid( )` Implementation of `Iterator::valid`
`public`	# `key( )` Implementation of `Iterator::key`
`public`	# `current( )` Implementation of `Iterator::current`
`public`	# `next( )` Implementation of `Iterator::next`
`public`	# `hasNext( )`
`public`	# `__toString( )`
`public`	# `getInnerIterator( )` Implementation of `OuterIterator::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`