How to add new field for ACF group using PHP?

Question

WordPress

Hello. I've been looking for information on this topic all day and can't find anything. So I need to programmatically add new fields to the ACF group. As soon as possible, I used the acf_add_local_field function. No result. By debugging, I see that the function reaches $store->set( $key, $field )->alias( $key, $name );
And everything seems to be ok, but the fields are not added. Please tell me if anyone had this situation and how did you solve it. You only need to create a field, without creating a group.

Answer 1

Are you sure you read the documentation? I just tested some examples from here and everything works

if ( function_exists('acf_add_local_field_group') ):

  acf_add_local_field_group(array(
    'key' => 'group_1',
    'title' => 'My Group',
    'fields' => array (),
    'location' => array (
      array (
        array (
          'param' => 'post_type',
          'operator' => '==',
          'value' => 'post',
        ),
      ),
    ),
  ));

  acf_add_local_field(array(
    'key' => 'field_1',
    'label' => 'Sub Title',
    'name' => 'sub_title',
    'type' => 'text',
    'parent' => 'group_1'
  ));

endif;