SplDoublyLinkedList::push (PHP 5 >= 5.3.0, PHP 7, PHP 8)SplDoublyLinkedList::push — Pushes an element at the end of the doubly linked list 说明 public SplDoublyLinkedList::push(mixed $value): void Pushes value at the end of the doubly linked list. 参数 value The value to push. 返回值 没有返回值。