The IteratorIterator class

    (PHP 5 >= 5.1.0, PHP 7, PHP 8)

    Introduction

    This iterator wrapper allows the conversion of anything that is Traversable into an Iterator. It is important to understand that most classes that do not implement Iterators have reasons as most likely they do not allow the full Iterator feature set. If so, techniques should be provided to prevent misuse, otherwise expect exceptions or fatal errors.

    Class synopsis

    class IteratorIterator implements OuterIterator {
    /* Methods */
    public __construct(Traversable $iterator, ?string $class = null)
    public current(): mixed
    public getInnerIterator(): ?Iterator
    public key(): mixed
    public next(): void
    public rewind(): void
    public valid(): bool
    }

    Notes

    Note:

    This class permits access to methods of the inner iterator via the __call magic method.

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