SplDoublyLinkedList::rewind()

(PHP 5 >= 5.3.0, PHP 7)

Rewind iterator back to the start

说明

publicSplDoublyLinkedList::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。

$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