Question

Im some array that’s being returned by some query.. and the result is something like this:

array(array('balance_1'=> '-5', 'balance_2'=>'-21'), array('balance_1'=> '-21', 'balance_2'=>'21'), array('balance_1'=> '-50', 'balance_2'=>'40')) 

i want to transform this into an array that looks something like this:

array(array(-5,11,-50), array(-21, 21, 40));

basicly i want to join all balance_1, all balance_2, all balance_3 into separated arrays.

any ideas? thanks

Answer 1

You’ll just loop over the list, then collect the values. It’s most simple if you reuse the existing keys to group:

foreach ($list as $row) {
    foreach ($row as $key=>$value) {
        $out[$key][] = $value;
    }
}

This way you’ll get an $out array, with [balance_1] or [balance_2] holding the value lists.