Lets say I have the following array:
$v = Array
(
    [0] => Array
        (
            [a] => 1
            [b] => 2
        )
    [1] => Array
        (
            [a] => 11
            [b] => 22
        )
)
Is there a native function taking the array and a key as input, and returning an array of all the values for the given key? With the above example it would give:
php> find_values_by_key($v, 'b');
Array( [0] => 2, [1] => 22 )
(I know I could write my own function, I'm just wondering if a native one exists).