array (
  'firstName' => 
  array (
    0 => 'This value is too short. It should have 3 characters or more.',
  ),
  'lastName' => 
  array (
    0 => 'This field is missing.',
  ),
  'hobbies' => 
  array (
    1 => 
    array (
      'frequency' => 
      array (
        0 => 'This field is missing.',
      ),
    ),
  ),
)