ArrayIterator::rewind

(PHP 5, PHP 7, PHP 8)

ArrayIterator::rewind — Rewind array back to the start

说明

public ArrayIterator::rewind(): void

This rewinds the iterator to the beginning.

参数

此函数没有参数。

返回值

没有返回值。

范例

示例 #1 ArrayIterator::rewind() example


<?php
$arrayobject = new ArrayObject();

$arrayobject[] = 'zero';
$arrayobject[] = 'one';
$arrayobject[] = 'two';

$iterator = $arrayobject->getIterator();

$iterator->next();
echo $iterator->key(); //1

$iterator->rewind(); //rewinding to the beginning
echo $iterator->key(); //0
?>

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