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$horde_online = "SELECT COUNT(*) FROM `characters` WHERE `online` = 1 AND `race` IN (2, 5, 6, 8, 10)"; 
$horde_online = mysqli_query($db->link_id, $horde_online_anz);		

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$sql = "INSERT INTO `account` (username, email, salt, verifier) VALUES (?, ?, ?, ?)";

$stmt = $conn->prepare($sql); 

$stmt->bind_param("ssss", 
$username_big,
$email,
$salt,
$verifier);

$stmt->execute();