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The OuterIterator interface

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Classes implementing OuterIterator can be used to iterate over iterators.

Intro

Classes implementing OuterIterator can be used to iterate over iterators.

Interfacesynopsis

implements OuterIterator extends Iterator { }

Outeriterator

In this section

OuterIterator::getInnerIterator

Returns the inner iterator for the current entry

Source: reference/spl/outeriterator.xml · from the official PHP manual (php/doc-en)