# The AppendIterator class

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

## Introduction

An Iterator that iterates over several iterators one after the other.

## Class synopsis

class AppendIterator extends IteratorIterator {
/* Methods */
public function __construct()
public function append(Iterator `$iterator`): void
public function current(): mixed
public function getArrayIterator(): ArrayIterator
public function getIteratorIndex(): ?int
public function key(): scalar
public function next(): void
public function rewind(): void
public function valid(): bool
/* Inherited methods */
public function IteratorIterator::current(): mixed
public function IteratorIterator::getInnerIterator(): ?Iterator
public function IteratorIterator::key(): mixed
public function IteratorIterator::next(): void
public function IteratorIterator::rewind(): void
public function IteratorIterator::valid(): bool
}

## Table of Contents

- AppendIterator::append — Appends an iterator
- AppendIterator::__construct — Constructs an AppendIterator
- AppendIterator::current — Gets the current value
- AppendIterator::getArrayIterator — Gets the ArrayIterator
- AppendIterator::getIteratorIndex — Gets an index of iterators
- AppendIterator::key — Gets the current key
- AppendIterator::next — Moves to the next element
- AppendIterator::rewind — Rewinds the Iterator
- AppendIterator::valid — Checks validity of the current element

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