Question

I have a multidimensional array like this one:

Array
(
    [site1] => Array
        (
            [0] => Array
                (
                    [0] => data
                    [1] => data
                    [2] => data
                    [3] => data
                )

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

                )

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

                )

    [site2] => Array
        (
            [0] => Array
                (
                    [0] => data
                    [1] => data
                    [2] => data
                    [3] => data
                )

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

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

I am trying to randomize the data for each site ([site1], [site2]) but don’t mix the data between sites. So it would be like a second tire randomization.

For example, after the randomization, the position [0] for [site1] would have different data, maybe the data from the earlier position [3].

Any ideas how to do it?

Answer 1

foreach($sites as $i => $site) {
   shuffle($sites[$i]);
}