Is Log-in Tracking Possible?

I am curious if it is possible to keep a SQL database of each log-in by a user along with the date and time and the log-in. If it is, would anybody mind pointing me in the direction of, or sharing a script to handle this? Ideally it would just have their username and the datetime stamp, along with the record id, of course. Also I'm hoping it will just be a function to add, or maybe a small include file perhaps?
I have a website that won't be used very often, so it isn't a concern that this data will get to be too large. For my records, I'd just like to be able to keep track of when it is used. I created the site with PHP and MySQL, and any help would be more than greatly appreciated!

Thanks!

 

I should have figured it was not only possible but something so easy. This is great, it worked like a charm! Thanks for the help jsm4182!