如何允许用户每天不连续24小时投票一次？

Question

I am trying to create function that allow users to vote only once in a day. For this I have created ratingTimestamp field in table in which I am inserting the current timestamp value at the voting time.

And for validating the users that he can vote only once per day. I am using this MySQL query:

SELECT count( * ) AS votecount
FROM ratings AS e
WHERE e.userId =5
AND e.ratingTimestamp >= NOW( ) - INTERVAL 1
DAY 

The problem is that this query giving me votecount on 24hrs basis but I want it on the basis of date only.

Like if user voted on 12-03-2014 11:59:00 AM and again he tried for voting at 13-03-2014 4:00PM he can vote but with using the above query it is not possible because it is giving me vote count 1 for this case because it is counting the last 24hrs from 4:00PM.

Answer 1

I think You should use something like this:

$sql="SELECT count( * ) AS votecount FROM ratings WHERE DATE(e.ratingTimestamp) = CURDATE()";

OR you can try through PHP

$sql="SELECT count( * ) AS votecount FROM ratings WHERE e.ratingTimestamp >= '".strtotime("today")."' AND e.ratingTimestamp < '".strtotime("tommorow")";

OR alternatively look into this link

Retrieve records by current date from MySQL