Ania

Array
(
    [0] => Roman
    [1] => Ania
    [2] => Kasia
    [3] => Tomek
    [4] => 2.55
    [5] => Jarek
)

array(6) { [0]=> string(5) "Roman" [1]=> string(4) "Ania" [2]=> string(5) "Kasia" [3]=> string(5) "Tomek" [4]=> float(2.55) [5]=> string(5) "Jarek" }

Roman Ania Kasia Tomek 2.55 Jarek

Array
(
    [0] => 24
    [1] => Array
        (
            [0] => czerwony
            [1] => zielony
            [2] => niebieski
        )

    [2] => Array
        (
            [0] => pn
            [1] => wt
            [2] => śr
        )

)

array(3) {
  [0]=>
  int(24)
  [1]=>
  array(3) {
    [0]=>
    string(8) "czerwony"
    [1]=>
    string(7) "zielony"
    [2]=>
    string(9) "niebieski"
  }
  [2]=>
  array(3) {
    [0]=>
    string(2) "pn"
    [1]=>
    string(2) "wt"
    [2]=>
    string(3) "śr"
  }
}