# AppendIterator 类

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

## 简介

这个迭代器能陆续遍历几个迭代器。

## 类摘要

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

## 目录

- 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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