ArrayIterator::rewind
(PHP 5, PHP 7)
ArrayIterator::rewind — Rewind array back to the start
说明
public ArrayIterator::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 #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 begining
echo $iterator->key(); //0
?>