ArrayIterator::rewind()

(PHP 5,PHP 7)

Rewind array back to the start

说明

publicArrayIterator::rewind(void) : 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

Example#1ArrayIterator::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 begining
echo $iterator->key(); //0
?>