Hi, in now im late but maybe this helps someone else…
With ACF Pro you can try something like:
$fields = array();
$groups = acf_get_field_groups(array('post_type' => 'kontakte'));
foreach($groups as $group){
$fields[$group['title']] = $group;
$f = acf_get_fields($group['ID']);
foreach($f as $i){
$fields[$group['title']]['fields'][$i['name']] = $i;
$fields[$group['title']]['fields'][$i['name']]['value'] = get_field($i['key']);
}
}
Greets
