public function WPCB_wp_get_revision_ui_diff($diff, $compare_from, $compare_to) { if (get_post($compare_from->post_parent)->post_type != "itemmc") { return $diff; } $eal_From = new EAL_ItemMC(); $eal_From->loadById($compare_from->ID); $eal_To = new EAL_ItemMC(); $eal_To->loadById($compare_to->ID); $diff[0] = $eal_From->compareTitle($eal_To); $diff[1] = $eal_From->compareDescription($eal_To); $diff[2] = $eal_From->compareQuestion($eal_To); $diff[3] = $eal_From->compareLevel($eal_To); $diff[4] = $eal_From->compareAnswers($eal_To); return $diff; }