# The ParentIterator class

(PHP 5 >= 5.1.0, PHP 7)

## Introduction

This extended FilterIterator allows a recursive iteration using RecursiveIteratorIterator that only shows those elements which have children.

## Class synopsis

ParentIterator extends RecursiveFilterIterator implements RecursiveIterator , OuterIterator {
/* Methods */
public accept ( ) : bool
public __construct ( RecursiveIterator `$iterator` )
public getChildren ( ) : ParentIterator
public hasChildren ( ) : bool
public next ( ) : void
public rewind ( ) : void
/* Inherited methods */
public OuterIterator::getInnerIterator ( ) : Iterator
}

## Table of Contents

- ParentIterator::accept — Determines acceptability
- ParentIterator::__construct — Constructs a ParentIterator
- ParentIterator::getChildren — Return the inner iterator's children contained in a ParentIterator
- ParentIterator::hasChildren — Check whether the inner iterator's current element has children
- ParentIterator::next — Move the iterator forward
- ParentIterator::rewind — Rewind the iterator