Php/docs/spldoublylinkedlist.construct

• PHP Manual
• SplDoublyLinkedList
• Constructs a new doubly linked list

SplDoublyLinkedList::__construct

(PHP 5 >= 5.3.0, PHP 7)

SplDoublyLinkedList::__construct — Constructs a new doubly linked list

说明

public SplDoublyLinkedList::__construct ( )

This constructs a new empty doubly linked list.

参数

此函数没有参数。

返回值

没有返回值。

范例

Example #1 SplDoublyLinkedList::__construct() example

<?php$dll = new SplDoublyLinkedList();$dll->push(2);$dll->push(3);$dll->unshift(5);var_dump($dll);?>

以上例程会输出：

object(SplDoublyLinkedList)#1 (2) {
  ["flags":"SplDoublyLinkedList":private]=>
  int(0)
  ["dllist":"SplDoublyLinkedList":private]=>
  array(3) {
    [0]=>
    int(5)
    [1]=>
    int(2)
    [2]=>
    int(3)
  }
}