SplHeap::valid
SplMaxHeap::compare
Datastructures
PHP Manual

# The SplMaxHeap class

(PHP 5 >= 5.3.0)

## Introduction

The SplMaxHeap class provides the main functionalities of a heap, keeping the maximum on the top.

## Class synopsis

SplMaxHeap extends SplHeap implements Iterator , Countable {
/* Methods */
protected int compare ( mixed `$value1` , mixed `$value2` )
/* Inherited methods */
abstract protected int SplHeap::compare ( mixed `$value1` , mixed `$value2` )
public int SplHeap::count ( void )
public mixed SplHeap::current ( void )
public mixed SplHeap::extract ( void )
public void SplHeap::insert ( mixed `$value` )
public bool SplHeap::isEmpty ( void )
public mixed SplHeap::key ( void )
public void SplHeap::next ( void )
public void SplHeap::recoverFromCorruption ( void )
public void SplHeap::rewind ( void )
public mixed SplHeap::top ( void )
public bool SplHeap::valid ( void )
}

## Table of Contents

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

SplHeap::valid
SplMaxHeap::compare
Datastructures
PHP Manual