PHPWales 2020 - June 3rd to June 4th

SplHeap::key

(PHP 5 >= 5.3.0, PHP 7)

SplHeap::keyReturn current node index

说明

public SplHeap::key ( void ) : mixed

This function returns the current node index

参数

此函数没有参数。

返回值

The current node index.

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