The SplHeap class

Introduction

The SplHeap class provides the main functionalities of an Heap.

SplHeap

abstractSplHeap implements Iterator , Countable {

/* Methods */

SplHeap::__construct ( void )

abstractint 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 )

}

SplHeap::compare — Compare elements in order to place them correctly in the heap while sifting up.
SplHeap::__construct — Constructs a new empty heap
SplHeap::count — Counts the number of elements in the heap.
SplHeap::current — Return current node pointed by the iterator
SplHeap::extract — Extracts a node from top of the heap and sift up.
SplHeap::insert — Inserts an element in the heap by sifting it up.
SplHeap::isEmpty — Checks whether the heap is empty.
SplHeap::key — Return current node index
SplHeap::next — Move to the next node
SplHeap::recoverFromCorruption — Recover from the corrupted state and allow further actions on the heap.
SplHeap::rewind — Rewind iterator back to the start (no-op)
SplHeap::top — Peaks at the node from the top of the heap
SplHeap::valid — Check whether the heap contains more nodes