Array keys, values

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If I have an array that looks like this:

Array
(
    [Salary] => Array
        (
            [0-50K] => Array
                (
                    [filterType] => range
                    [fieldLabel] => 0-50K
                    [fieldName] => SALARY
                    [lowerValue] => 0
                    [upperValue] => 50
                    [inclusive] => LEFT
                )

            [50-70K] => Array
                (
                    [filterType] => range
                    [fieldLabel] => 50-70K
                    [fieldName] => SALARY
                    [lowerValue] => 50
                    [upperValue] => 70
                    [inclusive] => BOTH
                )
        )
)


How can I access the key values?  Individually, that is.  What about the
child array key/values?  Individually, that is.  In the template, I've
tried:

{$myArray[0]}
{$myArray[0].filterType}
{$myArray[0][0]}

Nothing seems to work.  I know how to iterate through the entire array and
display the contents that way, but I don't know how to get the key/value of
just one particular element (and/or any child arrays of that element).

Any help would be greatly appreciated!

thnx,
Christoph

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