SplMaxHeap::compare

(PHP 5 >= 5.3.0)

SplMaxHeap::compareCompare elements in order to place them correctly in the heap while sifting up.

Описание

int SplMaxHeap::compare ( mixed $value1 , mixed $value2 )

Compare value1 with value2.

Список параметров

value1

The value of the first node being compared.

value2

The value of the second node being compared.

Возвращаемые значения

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

Замечание:

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


Участник рейтинга Тэглайн 2010