Heap::hashtIndex

    (Available since version 1.0)

    Heap::hashtIndex — Returns an index for use in a hash table

    Description

    protected mixed Heap::hashtIndex ( mixed $value )

    Takes a value and returns a value to be used to represent it as an index in a hash table. (Hash tables are used to 'tag' nodes for faster updates.)

    In most cases it simply returns value unaltered (unless Heap::value() has been overridden), but in the case of objects it returns their spl_object_hash().

    Parameters

    value

    The value to be mapped.

    Return Values

    The hash table index.

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