# The SplMinHeap class

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

## 简介

The SplMinHeap class provides the main functionalities of a heap, keeping the minimum on the top.

## 类摘要

class SplMinHeap extends SplHeap {
/* 方法 */
protected compare(mixed `$value1`, mixed `$value2`): int
/* 继承的方法 */
protected SplHeap::compare(mixed `$value1`, mixed `$value2`): int
public SplHeap::count(): int
public SplHeap::current(): mixed
public SplHeap::extract(): mixed
public SplHeap::insert(mixed `$value`): true
public SplHeap::isCorrupted(): bool
public SplHeap::isEmpty(): bool
public SplHeap::key(): int
public SplHeap::next(): void
public SplHeap::recoverFromCorruption(): true
public SplHeap::rewind(): void
public SplHeap::top(): mixed
public SplHeap::valid(): bool
}

## 目录

- SplMinHeap::compare — Compare elements in order to place them correctly in the heap while sifting up

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