SplMaxHeap::compare
SplMinHeap::compare
Datastructures
PHP Manual

# The SplMinHeap class

## Introduction

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

## Class synopsis

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

## Table of Contents

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

SplMaxHeap::compare
SplMinHeap::compare
Datastructures
PHP Manual