(PHP 5 >= 5.3.0)
SplQueue::enqueue — Adds an element to the queue.
Enqueues value at the end of the queue.
Note: SplQueue::enqueue() is an alias of SplDoublyLinkedList::push().
Note:
SplQueue::enqueue() is an alias of SplDoublyLinkedList::push().
The value to enqueue.
没有返回值。