SplMinHeap::compare
(PHP 5 >= 5.3.0)
SplMinHeap::compare — Compare elements in order to place them correctly in the heap while sifting up.
Описание
void SplMinHeap::compare
(
mixed $value1
,
mixed $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 lower 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.
