pdo->prepare('SELECT * FROM mail_aliases WHERE user_id = :user_id ORDER BY mail_address'); $statement->execute(['user_id' => $userId]); return $statement->fetchAll(PDO::FETCH_ASSOC); } public function checkAliasAvailable(string $mailAddress): bool { $statement = $this->pdo->prepare('SELECT 1 FROM mail_aliases WHERE mail_address = :mail_address LIMIT 1'); $statement->execute(['mail_address' => $mailAddress]); return $statement->rowCount() === 0; } public function createNewAlias(int $userId, string $mailAddress): void { $statement = $this->pdo->prepare('INSERT INTO mail_aliases (user_id, mail_address) VALUES (:user_id, :mail_address)'); $statement->execute([ 'user_id' => $userId, 'mail_address' => $mailAddress, ]); } }