Reply To: Same image on category page and all its child pages with ACF

• John Huebner

• April 23, 2017 at 4:17 am

<?php 

// added to single.php
// if outside of "The Loop" we need to get the current post id
$queried_object = get_queried_object();
$post_id = $queried_object->ID;

// gets a list of all post categories
$categories = wp_get_post_categories($post_id);
// you could also limit the list returned above by including
// secong $args parameter for function, for more info see
// https://developer.wordpress.org/reference/functions/wp_get_post_categories/

$url = false; // initialize $url value

if (count($categories)) {
  // the post has one or more categories
  // loop through them and see if any has an image set for the field
  foreach ($categories as $category) {
    $value = get_field('featuredimage', $taxonomy.'_'.$category->term_id);
    if ($value) {
      // this category has an image
      // you could also do more checking here
      // if there are other conditions to
      $url = $value;
      // in this case, use the first category that has an image
      // once we find an image stop looking
      break;
    } // end if $value
  } // end foreach categories
} // end if categories
?>
<div id="banner"<?php 
  if ($url) {
    ?> style="background-image: url(<?php echo $url; ?>);"<?php 
  } // end if url
  ?>>