将ACF数据显示为Wordpress帖子的“发布”上的帖子标题？

Question

Here is my code:

function my_post_title_updater( $post_id ) {

$my_post = array();
$my_post['ID'] = $post_id;

$brand = get_field('brand');
$asset = get_field('asset');
$language = get_field('language');

$countryfield = get_field_object('country');
$countryvalue = get_field('country');
$country = $countryfield['choices'][ $countryvalue ];

if ( get_post_type() == 'project' ) {
  $my_post['post_title'] = $brand . ' ' . $asset . ' ' . $country . ' ' . $language ;
}

wp_update_post( $my_post );

}

add_action('acf/save_post', 'my_post_title_updater', 20);

On publishing a Wordpress post this function is supposed to create a title based on a few Advanced Custom Fields. At the moment what it does is gets 'brand', 'asset' and 'language', but not 'country'. However, upon clicking 'update' of the post it will then display the country in the title.

Any help would be much appreciated.

Answer 1

尝试：

$country = $countryfield['choices'] . $countryvalue;