$statement = $connect->prepare('SELECT * FROM channel WHERE join_id=:login');
$statement->bindParam(':login', $chat_id, PDO::PARAM_STR);
$statement->execute();
$row = $statement->fetchAll();
if(!$row){
  return "У вас нет каналов";
}

$db->Query("SELECT COUNT(*) FROM db_users_a WHERE user = '$login'");
if($db->FetchRow() == 0){
 
# Foydalanuvchini ro`yhatga olamiz
$db->Query("INSERT INTO db_users_a (user, email, pass, referer, referer_id, date_reg, ip) 
VALUES ('$login','{$email}','$md5pass','$referer_name','$referer_id','$time',INET_ATON('$ip'))");
 
$lid = $db->LastInsert();
# BONUS belgilaymiz
$db->Query("INSERT INTO db_users_b (id, user, money_b, money_p, last_sbor) VALUES ('$lid','$login','1009', '1009', '".time()."')");
 
# Statistikani yangilaymiz
$db->Query("UPDATE db_stats SET all_users = all_users +1 WHERE id = '1'");

# Statistikani yangilaymiz
$sql = "UPDATE db_stats SET all_users=? WHERE id=1";
$stmt= $dpo->prepare($sql);
$stmt->execute([$all_users+1]);