Why online users script doesn't show proper user count?

[tutusaint]

I have a user count script thats well on my local host.
I uploaded it into my webserver and it always shows 1 user online and even when i login from diferent ip addresses.
The codes of my script is below.
Please help

$server         	= "localhost";  		
$db_user        	= "root"; 		   
$db_pass        	= "root";                                   
$database               ="test"                                      

$timeoutseconds 	= 200;	

$timestamp=time();                                                                                            
$timeout=$timestamp-$timeoutseconds;  
//$test=getenv("REMOTE_ADDR")
mysql_connect($server, $db_user, $db_pass) or die ("Useronline Database CONNECT Error");                                                                   
mysql_db_query($database, "INSERT INTO useronline VALUES ('$timestamp','$REMOTE_ADDR','$PHP_SELF')") or die("Useronline Database INSERT Error"); 
mysql_db_query($database, "DELETE FROM useronline WHERE timestamp<$timeout") or die("Useronline Database DELETE Error");
$result=mysql_db_query($database, "SELECT DISTINCT ip FROM useronline WHERE file='$PHP_SELF'") or die("Useronline Database SELECT Error");
$user  =mysql_num_rows($result);                                                                              
mysql_close();                                                                                                
if ($user==1) {echo"<font size=1>$user Star(s) curently online.</font>";} else {echo"<font size=1> $user Star(s) curently online.";}
?>

[Markus]

If you examine the database after visiting the page, do you see multiple entries?

[tutusaint]

It captures the timestamp only.
The IP (IP address) and file is not captured.

[Markus]

$REMOTE_ADDR? Do you mean $_SERVER['REMOTE_ADDR']? The same goes for $PHP_SELF. I do hope you're not using register globals. Also, are you seeing multiple entries in your database, if you have multiple visitors?