La routine è in TV<br>Array
(
    [k1] => Array
        (
            [0] => 1
            [1] => 2
            [2] => 4
            [3] => 5
        )

    [k2] => Array
        (
            [0] => a
            [1] => b
            [2] => d
            [3] => e
        )

)
<br>___________________________________________<br>Array
(
    [k1] => Array
        (
            [0] => 1
            [1] => 3
            [2] => 5
        )

    [k2] => Array
        (
            [0] => a
            [1] => c
            [2] => e
        )

)
<br>___________________________________________<br>falso 1 <br>--><br>falso 2<br>--><br>falso 3<br>--><br>-->1<br>___________________________________________<br>falso 2<br>b NON è una matrice 2d<br>a è una matrice 2d<br>___________________________________________<br>Array
(
    [k1] => Array
        (
            [0] => 2
            [1] => 4
        )

    [k2] => Array
        (
            [0] => b
            [1] => d
        )

)
<br>