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The OuterIterator interface

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

Introduction

Classes implementing OuterIterator can be used to iterate over iterators.

interface OuterIterator extends Iterator {

/* Methods */

/* Inherited methods */

public function Iterator::key(): mixed

public function Iterator::next(): void

public function Iterator::valid(): bool

}

OuterIterator::getInnerIterator — Returns the inner iterator for the current entry

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