PHP Manual
Interfaces
The RecursiveIterator interface

The RecursiveIterator interface

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

Introduction

Classes implementing RecursiveIterator can be used to iterate over iterators recursively.

Interface synopsis

interface RecursiveIterator extends Iterator {

/* Methods */

public getChildren(): ?RecursiveIterator

public hasChildren(): bool

/* Inherited methods */

public Iterator::current(): mixed

public Iterator::key(): mixed

public Iterator::next(): void

public Iterator::rewind(): void

public Iterator::valid(): bool

}

RecursiveIterator::getChildren — Returns an iterator for the current entry
RecursiveIterator::hasChildren — Returns if an iterator can be created for the current entry

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