Lấy dữ liệu từ Post object của custom field

// echo '<pre>';
// print_r( $test = get_field('school_obj'));
// echo '</pre>';
$school_obj = get_field('school_obj');
echo '<a href="'. get_permalink($school_obj->ID) .'" title="'.$school_obj->post_title .'">'.$school_obj->post_title .'</a>';

$countrys = get_field('countrys');
//var_dump($countrys);
echo $countrys->name; 
$test= $countrys -> term_id;
echo get_term_link($test);