SplMaxHeap::compare

The SplMaxHeap class

(PHP 5 >= 5.3.0)

简介

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

类摘要

SplMaxHeap extends SplHeap implements Iterator , Countable {

/* 方法 */

int compare ( mixed $value1 , mixed $value2 )

/* 继承的方法 */

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

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

SplMaxHeap::compare