php - 按经过时间计算价格 php mssql 服务器

Question

我有一个停车系统，我尝试制作一个 php 脚本来计算价格，而不是打印到 POS 打印机。

我从 mssql 得到了插入的时间，例如：2013-01-04 12:49:49

我想计算经过时间timenow();

比在几分钟内设置的值：

if 30 = 0;
if 60 = 1;
if 120 = 2,50

......和和:-)

是否可以？

Answer 1

请尝试使用DATEDIFF：

   SELECT CASE `X.ElapsedTime` 
               WHEN  MOD 30 = 0 THEN 0
               WHEN MOD 60 = 0 THEN 1 
               WHEN MOD 120 = 0 THEN 2 
               ELSE Null END AS `ElapsedCount` 
   FROM (SELECT  DATEDIFF(mi, startime, GetDate()) AS `ElapsedTime`
   FROM yourtable) X;

另一种方法是（如果你需要，你可以四舍五入）：

   SELECT (`X.ElapsedTime`/60 + '.' + `X.ElapsedTime` MOD 60) as `ElapsedCount`
   FROM (SELECT  DATEDIFF(mi, startime, GetDate()) AS `ElapsedTime`
   FROM yourtable) X;

或使用hh：

   SELECT  DATEDIFF(hh, startime, GetDate()) AS `ElapsedCount`
   FROM yourtable;

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在评论中编辑 OP 的查询以使用 JOIN

SELECT top 1 dbo.Partners.IdPartner AS pid, 
dbo.Partners.PartnerName AS name, dbo.Partners.MemberNumber AS nr, 
dbo.T_PAID_KARTE.MAGNETNA_COD, dbo.T_PAID_KARTE.ACTIVE AS active, 
dbo.T_PAID_KARTE.TYP AS cardnime, dbo.T_PAID_KARTE.ID_PAIDBY, 
dbo.T_LOGG.EXIT AS exittime, DATEDIFF(mi, exittime, GetDate()) AS ElapsedCount, 
dbo.T_LOGG.ID_PARTNER 
FROM dbo.Partners
INNER JOIN dbo.T_PAID_KARTE
ON 
INNER JOIN dbo.T_LOGG
ON 
;