Ticket #27881: get-terms-27881.diff

src/wp-includes/taxonomy.php

@@ -1540 +1540 @@
          * @param array        $args       An array of terms query arguments.
          */
         $clauses = apply_filters( 'terms_clauses', compact( $pieces ), $taxonomies, $args );
-        foreach ( $pieces as $piece )
-                $$piece = isset( $clauses[ $piece ] ) ? $clauses[ $piece ] : '';
 
-        $query = "SELECT $fields FROM $wpdb->terms AS t $join WHERE $where $orderby $order $limits";
+        $fields = isset( $clauses['fields'] ) ? $clauses['fields'] : '';
+        $join = isset( $clauses['join'] ) ? $clauses['join'] : '';
 
+        $query = "SELECT $fields FROM $wpdb->terms AS t $join WHERE";
+        foreach ( array( 'where', 'orderby', 'order', 'limits' ) as $piece ) {
+                if ( isset( $clauses[ $piece ] ) ) {
+                        $query .= ' ' . $clauses[ $piece ];
+                }
+        }
+
         $fields = $_fields;
 
         if ( 'count' == $fields ) {