What would the best way to create a who's online script?

And could I get a code example I would appreciate it.

Thanks,

X

I assume this is going to have to be based on registered users. If so, this is pretty much going to have to be a custom script every time. However, I found a quick tutorial for you that may help you get started: http://www.phpit.net/article/creatin...ne-script-php/

This does not have to be based only on registered users if you only need a number.

You must already understand that there is no such term as "user is online" in respect of HTTP protocol, there is only the term "user made the request not more than N seconds ago". On first request from a user you set a cookie for a period of time which you consider to be the period of being "online", e.g. 5 minutes. On next requests you refresh that cookie to last for more 5 minutes and save that request information to some storage like DB or file. To display stats you need to obtain the number of unique user identificators which were used not more than 5 minutes ago.

This does not have to be based only on registered users if you only need a number.

True, though I was thinking more along the lines of the "who's online" that is right here on Webmaster-Talk, at the bottom of the page...

@Red X: Perhaps you'd like to clarify?

Originally Posted by mtishetsky

This does not have to be based only on registered users if you only need a number.

You must already understand that there is no such term as "user is online" in respect of HTTP protocol, there is only the term "user made the request not more than N seconds ago". On first request from a user you set a cookie for a period of time which you consider to be the period of being "online", e.g. 5 minutes. On next requests you refresh that cookie to last for more 5 minutes and save that request information to some storage like DB or file. To display stats you need to obtain the number of unique user identificators which were used not more than 5 minutes ago.

well, mtishetsky answer very accuratelly.
to display exact stat we must also store the IP address of the users. that will help us to identify unique users.

what do you think ?

Originally Posted by wayfarer07

True, though I was thinking more along the lines of the "who's online" that is right here on Webmaster-Talk, at the bottom of the page...

@Red X: Perhaps you'd like to clarify?

The script that you gave works, with some very simple editing. I got it to work with registered users.

link not working

Originally Posted by wayfarer07

I assume this is going to have to be based on registered users. If so, this is pretty much going to have to be a custom script every time. However, I found a quick tutorial for you that may help you get started: http://www.phpit.net/article/creatin...ne-script-php/

Originally Posted by teampower

link not working

Check back every couple hours. Its a connection issue(wordpress)

I swear it was working when I posted it

Originally Posted by Red_X_

The script that you gave works, with some very simple editing. I got it to work with registered users.

That's great!

You can only create a script that count the visitors that went on your site on the last minutes. You can't see all of them if they are actually online. Only with woopra you can