Recursive loop for multidimenional arrays?

Question

I basically want to use str_replace all values of a multidimenional array. I cant seem to work out how I would do this for multidimenional arrays. I get a little stuck when

Answer 1

...What's wrong with array_walk_recursive?

 'apple', 'b' => 'banana');
$fruits = array('sweet' => $sweet, 'sour' => 'lemon');

function test_print($item, $key)
{
    echo "$key holds $item\n";
}

array_walk_recursive($fruits, 'test_print');
?>