PHP is developed and maintained by a global community of contributors.
The PHP Foundation helps fund this work. If PHP is part of your business or projects, consider sponsoring the Foundation.
(PHP 5 >= 5.3.0, PHP 7, PHP 8)
SplPriorityQueue::extract — Extracts a node from top of the heap and sift up
此函数没有参数。
The value or priority (or both) of the extracted node, depending on the extract flag.
