Ticket #40661: filter-term-query-results.patch

wp-includes/class-wp-term-query.php

@@ -693 +693 @@
                 }
 
                 $terms = $wpdb->get_results( $this->request );
+
+                /**
+                 * Filters the array of retrieved terms after they've been fetched but
+                 * before updating caches and returning them.
+                 *
+                 * @since 4.9.0
+                 *
+                 * @param array    $terms The array of retrieved terms.
+                 * @param WP_Query &$this The WP_Term_Query instance (passed by reference).
+                 */
+                $terms = apply_filters_ref_array( 'term_query_results', array( $terms, &$this ) );
+
                 if ( 'all' == $_fields || 'all_with_object_id' === $_fields ) {
                         update_term_cache( $terms );
                 }