SplMaxHeap
SplMinHeap
SplMaxHeap
PHP Manual

# SplMaxHeap::compare

(PHP 5 >= 5.3.0)

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

### Descrição

void SplMaxHeap::compare ( mixed `$value1` , mixed `$value2` )

Compare `value1` with `value2`.

### Parâmetros

`value1`

  The value of the first node being compared.

`value2`

  The value of the second node being compared.

### Valor Retornado

Result of the comparison, positive integer if `value1` is greater than `value2`, 0 if they are equal, negative integer otherwise.

> Nota: Having multiple elements with the same value in a Heap is not recommended. They will end up in an arbitrary relative position.

SplMaxHeap
SplMinHeap
SplMaxHeap
PHP Manual