Now I have managed to store the data.
But now, there is a problem to get the value from the db.
The saved data looks like:
a:4:{s:14:"country_prefix";s:2:"43";s:9:"area_code";s:1:"1";s:12:"phone_number";s:6:"666666";s:14:"direct_dialing";s:4:"0111";}
But, when i debug the $field var at the backend output i only get this data:
Array
(
[seperator] => -
[country-prefix] => +
[key] => field_54848f4ff3185
[label] => test
[name] => fields[field_54848f4ff3185]
[_name] => test
[type] => phonenumber
[order_no] => 26
[instructions] =>
[required] => 0
[id] => acf-field-test
[class] => phonenumber
[conditional_logic] => Array
(
[status] => 0
[rules] => Array
(
[0] => Array
(
[field] => field_545fc78e1d45a
[operator] => ==
[value] => 0
)
)
[allorany] => all
)
[field_group] => 137
[value] =>
)
The value is missing…
…also in the frontend