PHP - how to flip the rows and columns of a 2D array

Question

Normally I\'d be asking how to turn something like this:

1      2        3
4      5        6
7      8        9
10    11       12

Into this:

Answer 1

What you need is:

function flip($array) {
    array_unshift($array, null);
    return call_user_func_array('array_map', $array);
}