Ora dovrebbe funzionare.
Codice PHP:
<?php
$timeoutseconds = 300;
$timestamp = time();
$timeout = $timestamp-$timeoutseconds;
$insert = mysql_query ("INSERT INTO `connessi` (nickname,timestamp,ip,file) VALUES ('".$_COOKIE[logged]."'','".$timestamp."','".$_SERVER['REMOTE_ADDR']."','".$_SERVER['PHP_SELF']."')");
$canc = mysql_query("DELETE FROM `connessi` WHERE timestamp <".$timeout);
$result_utenti = mysql_query("SELECT nickname FROM `connessi` WHERE file='".$_SERVER['PHP_SELF']."' GROUP BY ip");
echo "Utenti connessi:
";
while
($user = mysql_fetch_array($result_utenti))
{
echo $user['nickname']."
";
}
?>