if(isset($_COOKIE['session_id']))) { $sid = esc($_COOKIE['session_id']); $uid = ; if(mysqli_num_rows(mysqli_query($mysqli, "SELECT `user_id` FROM `sessions` WHERE `session_id` = '".$sid."'")) > 0) $user = mysqli_fetch_assoc(mysqli_query($mysqli, "SELECT * FROM `users` WHERE `id` = '".$uid."'"));