SplPriorityQueue::extract

(PHP 5 >= 5.3.0, PHP 7, PHP 8)

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

public SplPriorityQueue::extract(): mixed

此函数没有参数。

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

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