Question

I have a datetime field in my MySql table where the date and time are recorded in the following format:

2010-12-17 18:06:59

I would like to select records where the datetime is in the last 15 minutes. How do I construct my query to do this?

I tried the following but it doesn’t work:

// check in last 15 minutes
$time_duration = (15 * 60);

"SELECT COUNT(CounterId) AS Count FROM visitors_counter WHERE TimeStamp > NOW() - $time_duration"

Thanks!

Answer 1

You could just do the entire thing in MySQL:

SELECT COUNT(CounterId) AS Count 
FROM visitors_counter
WHERE TimeStamp > (NOW() - INTERVAL 15 MINUTE)