works

bool(false)

array(29) {
  ["ID"]=>
  int(21)
  ["key"]=>
  string(19) "field_67f0bce013171"
  ["label"]=>
  string(12) "サービス"
  ["name"]=>
  string(7) "service"
  ["aria-label"]=>
  string(0) ""
  ["prefix"]=>
  string(3) "acf"
  ["type"]=>
  string(6) "select"
  ["value"]=>
  NULL
  ["menu_order"]=>
  int(2)
  ["instructions"]=>
  string(0) ""
  ["required"]=>
  int(1)
  ["id"]=>
  string(0) ""
  ["class"]=>
  string(0) ""
  ["conditional_logic"]=>
  int(0)
  ["parent"]=>
  int(18)
  ["wrapper"]=>
  array(3) {
    ["width"]=>
    string(0) ""
    ["class"]=>
    string(0) ""
    ["id"]=>
    string(0) ""
  }
  ["choices"]=>
  array(4) {
    ["branding"]=>
    string(21) "ブランディング"
    ["creative-design"]=>
    string(33) "クリエイティブデザイン"
    ["marketing"]=>
    string(21) "マーケティング"
    ["recruit"]=>
    string(12) "採用支援"
  }
  ["default_value"]=>
  bool(false)
  ["return_format"]=>
  string(5) "array"
  ["multiple"]=>
  int(0)
  ["allow_null"]=>
  int(0)
  ["allow_in_bindings"]=>
  int(0)
  ["ui"]=>
  int(0)
  ["ajax"]=>
  int(0)
  ["placeholder"]=>
  string(0) ""
  ["_name"]=>
  string(7) "service"
  ["_valid"]=>
  int(1)
  ["create_options"]=>
  int(0)
  ["save_options"]=>
  int(0)
}