- PHP 手册
- 函数参考
- 其它基本扩展
- SPL
- 数据结构
- SplHeap
SplHeap::top
(PHP 5 >= 5.3.0, PHP 7, PHP 8)
SplHeap::top — Peeks at the node from the top of the heap
说明
public SplHeap::top(): mixed参数
此函数没有参数。
返回值
The value of the node on the top.
错误／异常
Throws RuntimeException when the data-structure is empty.
User Contributed Notes
There are no user contributed notes for this page.官方地址：https://www.php.net/manual/en/splheap.top.php