If you use http://php.net/session_start, I guess you could declare
that your session timeout *IS* the definition of current users...
But, really, even at 5 minutes, you may be counting a lot of people
who have LEFT your site.
There is no "real" number for this.
Do whatever you want.
On Mon, February 5, 2007 6:35 am, benifactor wrote:
> i have built a function to tell me how many users are on my site at
> any given time...
> <?
>
> //define function
>
> function bc_who ($who, $location) {
>
>
> //first we erase any expired entries
> //entries will expire after 5 mins
> $whoTime = time();
> $whoTime = $whoTime - 300;
> mysql_query("Delete FROM bc_who where expire < $whoTime") or
> die(mysql_error());
>
> //here we difine the variables needed to preform the check
> $whoExpire = time();
> $whoIp = "$_SERVER[REMOTE_ADDR]";
>
> //this will be changed as soon as user registration is finished
> $whoUser= "Guest";
> //do the actual mysql queries
>
> mysql_query("Delete FROM bc_who where '$whoIp' = ip");
> mysql_query("Insert INTO bc_who (id, user, ip, location, expire,
> status) VALUES (NULL, '$whoUser', '$whoIp', '$location',
> '$whoExpire', '$whoStatus')");
>
>
> }
>
> //end who is function
>
> ?>
>
> this fuction works fine, however, i want to know if what i am about to
> ask is possible.
>
> the problem i have is, this function assumes that after five minutes
> if the user has not refreshed the page, or gone onto another page the
> user must be gone. in reality, i have pages users might be on for an
> hour or so without refreshing. i want my whos online to as acurate as
> possible so is there a way to do this on the fly? like, forgetting
> about the expire time and using a server side peice of code to
> communicate to the database, when there is no more communication the
> entry is deleted? please tell me there is a way, thank you in advance.
--
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http://cdbaby.com/browse/from/lynch
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