如何自动删除X天以前的Wordpress评论

I have a website in WordPress with a forum that uses the default comment system.

In my forum page users continuously post comments. I would like to automatically delete comments that are older then 15 days.

Is it possible to auto-delete WordPress comments on any page that are older than a predefined number of days?

I'm not aware of any plugins to automate the task.

You can use the following SQL:

DELETE FROM wp_comments WHERE date_sub(now(), interval 15 day) > comment_date

I suggest you create a scheduled cron job to run a script that connects to your database and executes the above SQL everyday.

(Assuming your comments table is named wp_comments.)