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SplMinHeap::compare
(No version information available, might be only in CVS)
SplMinHeap::compare — Compare elements in order to place them correctly in the heap while sifting up.
Описание
void SplMinHeap::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 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.