SplDoublyLinkedList::rewind()
(PHP 5 >= 5.3.0, PHP 7)
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。
$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