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    SplMinHeap::compare

    (PHP 5 >= 5.3.0, PHP 7, PHP 8)

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

    Descrizione

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

    Compare value1 with value2.

    Elenco dei parametri

    value1

    The value of the first node being compared.

    value2

    The value of the second node being compared.

    Valori restituiti

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

    Nota:

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

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    User Contributed Notes 1 note

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    sixd at php dot net
    14 years ago
    Note the definition of SplMaxHeap::compare() is different from SplMinHeap::compare()
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