SplMaxHeap::compare

(PHP 5 >= 5.3.0)

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

Опис

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

Compare value1 with value2.

Параметри

value1

The value of the first node being compared.

value2

The value of the second node being compared.

Значення, що повертаються

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

Зауваження:

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

add a note add a note

User Contributed Notes 1 note

up
2
sixd at php dot net
13 years ago
Note the definition of SplMaxHeap::compare() is different from SplMinHeap::compare()
To Top