$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
(PHP 5 >= 5.3.0, PHP 7, PHP 8)
SplDoublyLinkedList::rewind — Rewind iterator back to the start
此函数没有参数。
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