Array
(
    [0] => 6
    [1] => fox
    [2] => dog
    [3] => Array
        (
            [0] => x
            [1] => y
            [2] => z
        )

)
1

		

			Array
(
    [0] => 6
    [1] => fox
    [2] => cat
    [3] => Array
        (
            [0] => x
            [1] => y
            [2] => z
        )

    [4] => mouse
    [5] => horse
)
1

		

		Array
(
    [0] => 1
    [1] => 2
    [2] => 3
)
1

		?>