[thelist] PHP Multidimensional Array Keys

[Gavin Lilley]

I am a little stuck with an array. Please help!


matrixArray [Array
(
    [1] => Array
        (
            [unitName] => Unit 2
            [15] => Array
                (
                    [topicName] => Tutorial
                    [2] => Array
                        (
                            [matrixKey] => 16
                            [hours] => 16.00
                        )

                )

            [12] => Array
                (
                    [topicName] => Induction
                    [1] => Array
                        (
                            [matrixKey] => 17
                            [hours] => 6.00
                        )

                    [4] => Array
                        (
                            [matrixKey] => 18
                            [hours] => 44.00
                        )

                )

        )

)

To loop through the array I can do this:
while (list($key, $value) = each ($unitArray)) { echo "[$key ][
$value ]<br>";}
But I do not know how to 'drill down' through the array. Whats wrong with
the following code?

while (list($key, $value) = each ($unitArray)) {
 echo "[$key ][ $value ]<br>";
    while (list($keyA, $valueA) = each ($unitArray[$key])) {
     echo "[$keyA ][ $valueA ]<br>";
    }
}

Appreciate any help.

-- 
G.