SQLSTATE[HY000] [1049] Unknown database 'datalib'

Hello,
I'm trying to connect to a database that indeed exists via PDO, but I'm getting the following error: 'SQLSTATE[HY000] [1049] Unknown database 'datalib''.
Here is my code:

 <?php // Autoload require './vendor/autoload.php'; //include 'config.ini'; // Connection to the database $bdd = new Database("localhost", "datalib", "root", ""); var_dump($bdd); 

I'm using a Database class, of which here is the code:

 <?php class Database { private $host; private $dbname; private $user; private $pwd; private $bdd; private $error; public function __construct($host, $dbname, $user, $pwd) { $this->host = $host; $this->dbname = $dbname; $this->user = $user; $this->pwd = $pwd; // Set [/contents/698-odbc-open-database-connectivity DSN] $dsn = 'mysql:host=' . $this->host . ';dbname=' . $this->dbname; // Set options $options = [ PDO::ATTR_PERSISTENT => true, PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION, PDO::MYSQL_ATTR_INIT_COMMAND => 'SET NAMES utf8' ]; // Create a new PDO instance try { $this->bdd = new PDO($dsn, $this->user, $this->pwd, $options); } // Capture errors catch (PDOException $e) { $this->error = $e->getMessage(); } } public function query($query) { $this->stmt = $this->dbh->prepare($query); } public function bind($param, $value, $type = null) { if (is_null($type)) { switch (true) { case is_int($value): $type = PDO::PARAM_INT; break; case is_bool($value): $type = PDO::PARAM_BOOL; break; case is_null($value): $type = PDO::PARAM_NULL; break; default: $type = PDO::PARAM_STR; } } $this->stmt->bindValue($param, $value, $type); } public function execute() { return $this->stmt->execute(); } public function result() { $this->execute(); return $this->stmt->fetchAll(PDO::FETCH_OBJ); } public function single() { $this->execute(); return $this->stmt->fetch(PDO::FETCH_OBJ); } public function rowCount() { return $this->stmt->rowCount(); } public function lastInsertId() { return $this->bdd->lastInsertId(); } public function beginTransaction() { return $this->bdd->beginTransaction(); } public function endTransaction() { return $this->bdd->commit(); } public function cancelTransaction() { return $this->bdd->rollBack(); } public function debugDumpParams() { return $this->stmt->debugDumpParams(); } } 

The database datalib does indeed exist. I must mention that I'm using MariaDB instead of MySQL.

Please let me know where I went wrong.
Best regards