ParagonIE\EasyDB\Factory::create PHP Method

    public static function create(string $dsn, string $username = null, string $password = null, array $options = []) : EasyDB
    {
        $dbEngine = '';
        $post_query = null;
        // Let's grab the DB engine
        if (strpos($dsn, ':') !== false) {
            $dbEngine = explode(':', $dsn)[0];
        }
        // If no charset is specified, default to UTF-8
        switch ($dbEngine) {
            case 'mysql':
                if (\strpos($dsn, ';charset=') === false) {
                    $dsn .= ';charset=utf8mb4';
                }
                break;
            case 'pgsql':
                $post_query = 'SET NAMES UNICODE';
                break;
        }
        try {
            $pdo = new \PDO($dsn, $username, $password, $options);
        } catch (\PDOException $e) {
            // Don't leak credentials directly if we can.
            throw new Issues\ConstructorFailed('Could not create a PDO connection. Please check your username and password.');
        }
        // Let's turn off emulated prepares
        $pdo->setAttribute(\PDO::ATTR_EMULATE_PREPARES, false);
        if (!empty($post_query)) {
            $pdo->query($post_query);
        }
        return new EasyDB($pdo, $dbEngine);
    }

 /**
  * @param $dsn
  * @param null $username
  * @param null $password
  * @param array $options
  * @dataProvider GoodFactoryCreateArgumentProvider
  */
 public function testGetAvailableDrivers($dsn, $username = null, $password = null, array $options = [])
 {
     if (count(PDO::getAvailableDrivers()) < 1) {
         $this->markTestSkipped('No drivers available!');
     } else {
         $db = Factory::create($dsn, $username, $password, $options);
         $this->assertEquals(count(array_diff_assoc(PDO::getAvailableDrivers(), $db->getAvailableDrivers())), 0);
         $this->assertEquals(count(array_diff_assoc(PDO::getAvailableDrivers(), $db->getPdo()->getAvailableDrivers())), 0);
         $this->assertEquals(count(array_diff_assoc($db->getAvailableDrivers(), $db->getPdo()->getAvailableDrivers())), 0);
     }
 }