Class SplDoublyLinkedList

SplDoublyLinkedList implements Iterator, Traversable, Countable, ArrayAccess, Serializable

PHP Extension: SPL
Documented at php.net

Methods summary
`public`	# `pop( )`
`public`	# `shift( )`
`public`	# `push( $value )`
`public`	# `unshift( $value )`
`public`	# `top( )`
`public`	# `bottom( )`
`public`	# `isEmpty( )`
`public`	# `setIteratorMode( $flags )`
`public`	# `getIteratorMode( )`
`public`	# `count( )` Implementation of `Countable::count()`
`public`	# `offsetExists( $index )` Implementation of `ArrayAccess::offsetExists()`
`public`	# `offsetGet( $index )` Implementation of `ArrayAccess::offsetGet()`
`public`	# `offsetSet( $index, $newval )` Implementation of `ArrayAccess::offsetSet()`
`public`	# `offsetUnset( $index )` Implementation of `ArrayAccess::offsetUnset()`
`public`	# `add( $index, $newval )`
`public`	# `rewind( )` Implementation of `Iterator::rewind()`
`public`	# `current( )` Implementation of `Iterator::current()`
`public`	# `key( )` Implementation of `Iterator::key()`
`public`	# `next( )` Implementation of `Iterator::next()`
`public`	# `prev( )`
`public`	# `valid( )` Implementation of `Iterator::valid()`
`public`	# `unserialize( $serialized )` Implementation of `Serializable::unserialize()`
`public`	# `serialize( )` Implementation of `Serializable::serialize()`