PHP coupons::user_coupon_data示例

 public function get_init_discount($userid = 0)
 {
     global $dbh, $postvar, $getvar, $instance;
     if (!$userid) {
         $userid = $_SESSION['cuser'];
     }
     $coupons_query = coupons::user_coupon_data($userid, 1);
     while ($coupons_used_fetch = $dbh->fetch_array($coupons_query)) {
         $valid_coupon = coupons::check_expire($coupons_used_fetch['coupcode'], $userid);
         if ($valid_coupon) {
             $coupon_data = $dbh->select("coupons", array("coupcode", "=", $coupons_used_fetch['coupcode']));
             $total_init = $total_init + $coupon_data['p2hinitdisc'];
         }
     }
     return $total_init;
 }