fout in het script

<?PHP
$timeoutseconds         = 600;                        // tijd hoelang iemand op je pagina zit in seconds 

$timestamp=time(); 
$timeout=$timestamp-$timeoutseconds; 
mysql_connect($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(); 
?> 

<?PHP
$timeoutseconds         = 600;                        // tijd hoelang iemand op je pagina zit in seconds 
 
$timestamp=time(); 
$timeout=$timestamp-$timeoutseconds; 
mysql_connect($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(); 
?>