CakePHP2-array_multisort

         $sort = array();
         foreach($out as $key=>$value){
             $sort['available'][$key] = $value[MDL_T_COUPON_COURSES]['available'];
             $sort['sort'][$key] = $value[MDL_T_COUPONS]['sort'];
             $sort['today_available_active'][$key] = $value[MDL_T_SHOP_AVAILABILITIES]['today_available_active'];
         }
         // ソート
         array_multisort($sort['today_available_active'], SORT_DESC, $sort['available'], SORT_DESC, $sort['sort'], SORT_ASC, $out);