User Online Count

I'm on Mac OSX system, PHP 4:

If anyone knows of where i can get a tutorial on "counting the users currently on my site?" using php, and/or Mysql

Thank you.

Frankly, I don't see how it can be done unless you are trying to count the number of users that have logged in. If you simply want to count the number of surfers that have your site in an open window it is not really possible, because once the user's browser loads the page you really have no way to tell that it is still open. If you want to count the number of requests for your page and then display the ones that requested it recently (within a given time period), use the $_SERVER[$REMOTE_ADDR] variable.

Oh, you may also try and use the onblur() event handler to submit a hidden form that indicates that the browser is not in use, but I am not sure if this will work very well. Check out other javascript event handlers.

if you are using asp you can use a global.asa
like below
<SCRIPT LANGUAGE="VBScript" RUNAT="Server">

SUB Application_OnStart

Application("ActiveUsers") = 0

END SUB

Sub Session_OnStart

Session.Timeout = 1
'Session("Start") = Now


Application.Lock
Application("ActiveUsers") = Application("ActiveUsers") + 1
Application.UnLock

End Sub


Sub Session_OnEnd
Application.Lock
Application("ActiveUsers") = 0
Application.UnLock
End Sub

</SCRIPT>
but i dont know how it is done in php if you find out let me know
anthonym@gledhill.net ok