MinHeap::compare

    (Available since version 1.0)

    MinHeap::compare — Compare elements in order to place them correctly in the heap

    Description

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

    Compare value1 with value2.

    Note:

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

    Parameters

    value1

    The value of the first node being compared.

    value2

    The value of the second node being compared.

    Return Values

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

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