PHP’s array_map including keys

Is there a way of doing something like this:

$test_array = array("first_key" => "first_value", 
                    "second_key" => "second_value");

var_dump(array_map(function($a, $b) { return "$a loves $b"; }, 
         array_keys($test_array), 
         array_values($test_array)));

But instead of calling array_keys and array_values, directly passing the $test_array variable?

The desired output is:

array(2) {
  [0]=>
  string(27) "first_key loves first_value"
  [1]=>
  string(29) "second_key loves second_value"
}