Reply To: Invalid Array from Relationship Field Type

• John Huebner

• May 27, 2020 at 5:19 am

// use get_queried_object because you might not be showing
// something that returns an value for get_queried_object_id()
$queried_object = get_queried_object();
// initialize $persons in case nothing is returnd for field
$persons = false;
// test queried object to see if it's a post
if (is_a($queried_object, 'WP_POST')) {
  $persons = get_field('persons', $queried_object->ID);
}
// test $persons to make sure something was returned
if (!empty($persons)) {
  foreach ($persons as $post) {
    setup_postdata($post); 
    ?><meta name="author" content="<?php the_title() ?>" /><?php 
  }
  wp_reset_postdata();
}
// if nothing was returned for $persons show a default
// if this is a single post
if (!$persons && is_single()) {
  ?><meta name="author" content="<?php echo get_the_author_meta('display_name', $post->post_author); ?>"><?php 
}