比较日期mysql php

Question

我正在尝试制作日历视图。我需要检查$currentDateTime是否在mysql查询中的startdate和enddate之间。

我已根据Compare dates in MySQL

尝试了此查询

SELECT id, startdate, enddate FROM hirings
WHERE startdate <= '$currentDateTime'
AND enddate <= '$currentDateTime'

其中$ currentDateTime的格式为dd-mm-yyyy hh:mm

但它似乎不起作用，我不断返回0 rows。

任何帮助将不胜感激：）

Answer 1

确保使用默认日期时间格式YYYY-MM-DD HH:mm:ss

SELECT id, startdate, enddate
FROM hirings
WHERE '$currentDateTime' between startdate AND enddate

或者如果您想使用当前的SQL时间，那么您甚至不需要查询参数

SELECT id, startdate, enddate
FROM hirings
WHERE NOW() between startdate AND enddate

Answer 2

将查询更改为startdate＆gt; =而不是＆lt; =

SELECT id, startdate, enddate FROM hirings WHERE startdate >= '$currentDateTime' AND enddate <= '$currentDateTime'

Answer 3

试试这个：

SELECT hr.id, hr.startdate, hr.enddate 
FROM hirings hr
WHERE STR_TO_DATE('$currentDateTime', '%d-%m-%Y %H:%i:%s')
between hr.startdate AND hr.enddate;