php – 每周统计信息的SQL查询错误

我正在尝试为用户注册制作每周统计数据.它应该每周工作.一周总共七天.我想在屏幕上打印一周中每天注册的用户数.

例如：

Number of users who registered on Monday = 38

Number of users who registered on Tuesday = 11

…. …. and this list will only list the week we were

我创建了一个SQL查询,如下所示：

SELECT WEEKDAY(registerTime)+1, count(*) 
FROM users group by WEEKDAY(registerTime) 
ORDER BY WEEKDAY(registerTime)

但这个问题的结果却截然不同.此总数显示每周一在星期一注册的用户数.

解决方法:

您希望仅将用户限制为本周,因此您无法获得所有内容：

SELECT WEEKDAY(registerTime)+1, count(*) 
FROM users
WHERE WEEKOFYEAR(registerTime) = WEEKOFYEAR(CURDATE()) 
     AND YEAR(registerTime) = YEAR(CURDATE())
group by WEEKDAY(registerTime)
ORDER BY WEEKDAY(registerTime);

基本上,您将一年中的一年和一周与您需要的相匹配.那应该够了.