PHP 7.1.24 Released

SplHeap::top

(PHP 5 >= 5.3.0, PHP 7)

SplHeap::topPeeks at the node from the top of the heap

说明

public mixed SplHeap::top ( void )

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.

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