SplHeap::valid

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

SplHeap::valid — Check whether the heap contains more nodes

說(shuō)明

public SplHeap::valid(): bool

Checks if the heap contains any more nodes.

參數(shù)

此函數(shù)沒有參數(shù)。

返回值

Returns true if the heap contains any more nodes, false otherwise.