if (isset($_GET['url_id'])) {
// Generate general statistics
$result = SQL_QUERY_ESC("SELECT `userid`, `count` AS `total_visits`, UNIX_TIMESTAMP(`last_online`) AS `last_online`
if (isset($_GET['url_id'])) {
// Generate general statistics
$result = SQL_QUERY_ESC("SELECT `userid`, `count` AS `total_visits`, UNIX_TIMESTAMP(`last_online`) AS `last_online`
} else {
// Generate general statistics
$result = SQL_QUERY("SELECT `userid`, COUNT(`url_id`) AS `visited_urls`, SUM(`count`) AS `total_visits`
} else {
// Generate general statistics
$result = SQL_QUERY("SELECT `userid`, COUNT(`url_id`) AS `visited_urls`, SUM(`count`) AS `total_visits`