SplDoublyLinkedList::rewind

(PHP 5 >= 5.3.0, PHP 7)

SplDoublyLinkedList::rewind — Rewind iterator back to the start

说明

public SplDoublyLinkedList::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。

User Contributed Notes

lincoln dot du dot j at gmail dot com 10-Jul-2017 08:42


$dll = new SplDoublyLinkedList();

$dll->push(2);

$dll->push(3);

$dll->unshift(5);

$dll->rewind(); // starting from beginning without this it will not work



while($dll->valid()){

    echo $dll->current()."\n";

    $dll->next();

}



//Output

5

2

3