SplPriorityQueue::extract

(PHP 5 >= 5.3.0, PHP 7)

SplPriorityQueue::extract — Extracts a node from top of the heap and shift up.

说明

public mixed SplPriorityQueue::extract ( void )

参数

此函数没有参数。

返回值

The value or priority (or both) of the extracted node, depending on the extract flag.