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(PHP 5 >= 5.3.0)

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


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.


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

Описание класса splmaxheap, примеры использования класса splmaxheap.

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Описание на ru2.php.net
Описание на php.ru