WordPress Version: 4.3
/**
* Will clean the attachment in the cache.
*
* Cleaning means delete from the cache. Optionally will clean the term
* object cache associated with the attachment ID.
*
* This function will not run if $_wp_suspend_cache_invalidation is not empty.
*
* @since 3.0.0
*
* @global bool $_wp_suspend_cache_invalidation
*
* @param int $id The attachment ID in the cache to clean.
* @param bool $clean_terms Optional. Whether to clean terms cache. Default false.
*/
function clean_attachment_cache($id, $clean_terms = false)
{
global $_wp_suspend_cache_invalidation;
if (!empty($_wp_suspend_cache_invalidation)) {
return;
}
$id = (int) $id;
wp_cache_delete($id, 'posts');
wp_cache_delete($id, 'post_meta');
if ($clean_terms) {
clean_object_term_cache($id, 'attachment');
}
/**
* Fires after the given attachment's cache is cleaned.
*
* @since 3.0.0
*
* @param int $id Attachment ID.
*/
do_action('clean_attachment_cache', $id);
}