IterableIterator

A normalized iterator wrapper that ensures any iterable (array or Traversable) is treated as a standard \Iterator.

This utility class simplifies iterator interoperability by converting arrays into \ArrayIterator and wrapping \Traversable instances as needed. It SHALL be used when an \Iterator is expected but the input MAY be any iterable.

Example usage:

$items = new IterableIterator([1, 2, 3]);

foreach ($items as $item) {
    echo $item;
}
// Output: 123

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• Full name: \FastForward\Iterator\IterableIterator
• Parent class: \FastForward\Iterator\CountableIteratorIterator
• This class is marked as final and can't be subclassed
• This class is a Final class

Methods

__construct

Constructs an IterableIterator from any iterable input.

public __construct(iterable $iterable): mixed

Arrays are converted to \ArrayIterator; Traversables are passed directly.

Parameters:

Parameter	Type	Description
$iterable	iterable	the iterable to wrap as an \Iterator

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Inherited methods

count

Counts the number of elements exposed by the inner iterator.

public count(): int

If the inner iterator implements

• See: \Countable, this method SHALL return the value provided by that implementation. Otherwise, it MUST count elements by iterating over the iterator. If the inner iterator is not cloneable, this method SHALL wrap the current object in an

• See: \IteratorIterator instance and count through that wrapper to avoid performing an invalid clone operation. If the inner iterator is cloneable, this method SHOULD count over a clone so that the original iterator state is preserved as much as possible.

Return Value:

the total number of elements available from the inner iterator

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