ArrayIterator::rewind
(PHP 5, PHP 7, PHP 8)
ArrayIterator::rewind — Rewind array back to the start
說明
public ArrayIterator::rewind(): void
This rewinds the iterator to the beginning.
參數
此函式沒有參數。
返回值
沒有返回值。
範例
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
?>