if (!isset($lookup) || !isNum($lookup)) fallback("index.php");
$result = dbquery("SELECT * FROM ".$db_prefix."users WHERE user_id='$lookup'");
if (dbrows($result)) { $data = dbarray($result); } else { redirect("index.php"); }

$result = dbquery("SELECT * FROM ".$db_prefix."users WHERE user_id='$lookup'");
if (dbrows($result)) { $data = dbarray($result); } else { echo "PROFILIS NEEGZISTUOJA!!!"; }