The MultipleIterator class

(PHP 5 >= 5.3.0, PHP 7, PHP 8)

簡介

An Iterator that sequentially iterates over all attached iterators

class MultipleIterator implements Iterator {

/* 常量 */

const int MIT_NEED_ANY = 0;

const int MIT_NEED_ALL = 1;

const int MIT_KEYS_NUMERIC = 0;

const int MIT_KEYS_ASSOC = 2;

/* 方法 */

public __construct(int $flags = MultipleIterator::MIT_NEED_ALL | MultipleIterator::MIT_KEYS_NUMERIC)

public attachIterator(Iterator $iterator, string|int|null $info = null): void

public containsIterator(Iterator $iterator): bool

public current(): array

public detachIterator(Iterator $iterator): void

public getFlags(): int

public key(): array

public next(): void

public rewind(): void

public setFlags(int $flags): void

public valid(): bool

}

MultipleIterator::MIT_NEED_ANY: Do not require all sub iterators to be valid in iteration.
MultipleIterator::MIT_NEED_ALL: Require all sub iterators to be valid in iteration.
MultipleIterator::MIT_KEYS_NUMERIC: Keys are created from the sub iterators position.
MultipleIterator::MIT_KEYS_ASSOC: Keys are created from sub iterators associated information.

MultipleIterator::attachIterator — Attaches iterator information
MultipleIterator::__construct — Constructs a new MultipleIterator
MultipleIterator::containsIterator — Checks if an iterator is attached
MultipleIterator::countIterators — Gets the number of attached iterator instances
MultipleIterator::current — Gets the registered iterator instances
MultipleIterator::detachIterator — Detaches an iterator
MultipleIterator::getFlags — Gets the flag information
MultipleIterator::key — Gets the registered iterator instances
MultipleIterator::next — Moves all attached iterator instances forward
MultipleIterator::rewind — Rewinds all attached iterator instances
MultipleIterator::setFlags — Sets flags
MultipleIterator::valid — Checks the validity of sub iterators