# The IntlPartsIterator class

(PHP 5 >= 5.5.0, PHP 7, PHP 8)

## 简介

Objects of this class can be obtained from IntlBreakIterator objects. While the break iterators provide a sequence of boundary positions when iterated, IntlPartsIterator objects provide, as a convenience, the text fragments comprehended between two successive boundaries.

The keys may represent the offset of the left boundary, right boundary, or they may just the sequence of non-negative integers. See IntlBreakIterator::getPartsIterator().

## 类摘要

class IntlPartsIterator extends IntlIterator {
/* 常量 */
public const int KEY_SEQUENTIAL;
public const int KEY_LEFT;
public const int KEY_RIGHT;
/* 方法 */
public function getBreakIterator(): IntlBreakIterator
/* 继承的方法 */
public function IntlIterator::current(): mixed
public function IntlIterator::key(): mixed
public function IntlIterator::next(): void
public function IntlIterator::rewind(): void
public function IntlIterator::valid(): bool
}

## 预定义常量

`IntlPartsIterator::KEY_SEQUENTIAL` int

`IntlPartsIterator::KEY_LEFT` int

`IntlPartsIterator::KEY_RIGHT` int

## 更新日志

版本 | 说明
--- | ---
8.4.0 | The class constants are now typed.

## 目录

- IntlPartsIterator::getBreakIterator — Get IntlBreakIterator backing this parts iterator

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