Geting all array elements of user_meta

hi i want to get all elements of an data array and data2 array

i use this code

$get_data = get_user_meta($user_id);
  $get_all = array(
  'data' => $get_data['testing'],
  'data2' => $get_data['testing2']
  );

  	 print_r($get_all);

if i print_r(get_all[‘data’][0]);
it gives me only 1st element but i need all element of [data] => Array

here is my result:

Array
(
[data] => Array
(
[0] => hello
[1] => hello
[2] => hello
[3] => hello
[4] => hello
[5] => hello
[6] => hello
)

[data2] => Array
(
[0] => world
[1] => world
[2] => world
[3] => world
[4] => world
[5] => world
[6] => world
)

)

Thanks in advance