How often in a day must you do this? Every 5mn?

----- Original Message -----
From: "Leif K-Brooks" <[EMAIL PROTECTED]>
Sent: Sunday, October 27, 2002 7:33 AM
Subject: [PHP-DB] Getting rows where column has changed?

> I'm trying to make a page to help in detecting people using automatic
> refresher programs.  In the table that stores user info, there is a
> column called "lastseen" which says when the user was last seen.  I'm
> trying to:
> 1. Select all lastseen colmns that are less than 5 minutes old
> 2. Wait 2 seconds
> 3. Select lastseen columns that have changed since step 1, and display
> that info
> Any ideas on how to do this?  Is it even possible?  Thanks...
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