Question

我在PHP中有一个函数，它以下列格式返回postgresql数据库所用的时间

00:34:01.024416

在php中，这些数据存储为＆＃34; String＆＃34;这没什么用。我可以在PHP中使用什么，以便我可以对数据库提供的数据进行计算？

Answer 1

您可以将postgres中的数据转换为毫秒或微秒。这可以存储在PHP中，以后用于操作总时间......如下所示的查询将帮助您完成此操作

SELECT
(EXTRACT (HOURS FROM TIME '00:34:01.024416') * 3600000) :: int AS "hour-millisecond",
(EXTRACT (MINUTE FROM TIME '00:34:01.024416') * 60000) :: int AS "minute-millisecond",
(EXTRACT (SECOND FROM TIME '00:34:01.024416') * 1000) :: int AS "second-millisecond",
(EXTRACT (MILLISECONDS FROM TIME '00:34:01.024416')) :: int AS "millisecond"

SELECT (EXTRACT (HOURS FROM TIME '00:34:01.024416') * 3600000) :: int + 
(EXTRACT (MINUTE FROM TIME '00:34:01.024416') * 60000) :: int + 
(EXTRACT (SECOND FROM TIME '00:34:01.024416') * 1000) :: int + 
(EXTRACT (MILLISECONDS FROM TIME '00:34:01.024416')) :: int AS millisecondelapsed

[编辑]

SELECT (EXTRACT (HOURS FROM  elapsedtime_result.elapsedtime) * 3600000) :: int + 
(EXTRACT (MINUTE FROM  elapsedtime_result.elapsedtime) * 60000) :: int + 
(EXTRACT (SECOND FROM  elapsedtime_result.elapsedtime) * 1000) :: int + 
(EXTRACT (MILLISECONDS FROM  elapsedtime_result.elapsedtime)) :: int AS millisecondelapsed 
FROM (SELECT current_timestamp - max(createdon) elapsedtime FROM testtable) AS elapsedtime_result

将postgresql间隔格式转换为php中可用的内容

1 个答案: