User Online Class

Description:

This very simple class enables you to track number of visitors online in an easy and accurate manner.

Main features include:

• Automatic insertion of new user
• Automatic database cleanup
• Check if user is coming behind proxy server (this helps in script accuracy)
• Display of users online
• Error reporting

DATABASE STRUCTURE
CREATE TABLE `useronline` (
`id` int(10) NOT NULL auto_increment,
`ip` varchar(15) NOT NULL default '',
`timestamp` varchar(15) NOT NULL default '',
PRIMARY KEY (`id`),
UNIQUE KEY `id`(`id`)
) TYPE=MyISAM COMMENT='' AUTO_INCREMENT=1 ;
?>



PHP CODE :
include_once ("usersOnline.class.php");
$visitors_online = new usersOnline();

if (count($visitors_online->error) == 0) {

if ($visitors_online->count_users() == 1) {
echo "There is " . $visitors_online->count_users() . " visitor online";
}
else {
echo "There are " . $visitors_online->count_users() . " visitors online";
}
}
else {
echo "Users online class errors:

\r\n";
for ($i = 0; $i < count($visitors_online->error); $i ++ ) {
echo "
• " . $visitors_online->error[$i] . "
\r\n";
}
echo "

\r\n";

}
?>