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