The ParentIterator class

The ParentIterator class

Introduction

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

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

Class synopsis

class ParentIterator extends RecursiveFilterIterator implements RecursiveIterator, OuterIterator {

/* Methods */

public __construct(RecursiveIterator $iterator)

public accept(): bool

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

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https://www.php.net/manual/en/class.parentiterator.php