"Who Is Online" Widget With PHP, MySQL & jQueryFor this week's tutorial, we are taking a look at our ever-so-interesting inbox. It all started with a letter from one of our readers a couple of weeks ago: My boss is always coming into my office asking me to install things on our client's sites. One of the items that's been coming up more and more is "How can we tell who's currently online?" So, the next time you need a tutorial idea, there you
