Php/docs/splheap.valid

• PHP Manual
• SplHeap
• Check whether the heap contains more nodes

SplHeap::valid

(PHP 5 >= 5.3.0, PHP 7)

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

说明

public SplHeap::valid ( ) : bool

Checks if the heap contains any more nodes.

参数

此函数没有参数。

返回值

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