public function connect()
    {
        if ($this->isConnected) {
            return false;
        }

        if (!$this->pdo) {
            $this->beforeConnect && call_user_func($this->beforeConnect, $this);

            $dsn = $this->getDsn();
            $attrs = $this->attrs + array(
                PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
                PDO::ATTR_STRINGIFY_FETCHES => true,
                PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC
            );

            try {
                $this->pdo = new PDO($dsn, $this->user, $this->password, $attrs);
            } catch (\PDOException $e) {
                $this->connectFails && call_user_func($this->connectFails, $this, $e);
                throw $e;
            }

            $this->afterConnect && call_user_func($this->afterConnect, $this, $this->pdo);
        }

        $this->isConnected = true;

        return true;
    }
public function connect()
    {
        if ($this->isConnected) {
            return false;
        }

        if (!$this->pdo) {
            $this->beforeConnect && call_user_func($this->beforeConnect, $this);

            $dsn = $this->getDsn();
            $attrs = $this->attrs + array(
                PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
                PDO::ATTR_STRINGIFY_FETCHES => true,
                PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC
            );

            try {
                $this->pdo = new PDO($dsn, $this->user, $this->password, $attrs);
            } catch (\PDOException $e) {
                $this->connectFails && call_user_func($this->connectFails, $this, $e);
                throw $e;
            }

            $this->afterConnect && call_user_func($this->afterConnect, $this, $this->pdo);
        }

        $this->isConnected = true;

        return true;
    }
public function connect ( ) { if ( $ this -> isConnected ) { return false ; } if ( ! $ this -> pdo ) { $ this -> beforeConnect && call_user_func ( $ this -> beforeConnect , $ this ) ; $ dsn = $ this -> getDsn ( ) ; $ attrs = $ this -> attrs + array ( PDO :: ATTR_ERRMODE => PDO :: ERRMODE_EXCEPTION , PDO :: ATTR_STRINGIFY_FETCHES => true , PDO :: ATTR_DEFAULT_FETCH_MODE => PDO :: FETCH_ASSOC ) ; try { $ this -> pdo = new PDO ( $ dsn , $ this -> user , $ this -> password , $ attrs ) ; } catch ( \ PDOException $ e ) { $ this -> connectFails && call_user_func ( $ this -> connectFails , $ this , $ e ) ; throw $ e ; } $ this -> afterConnect && call_user_func ( $ this -> afterConnect , $ this , $ this -> pdo ) ; } $ this -> isConnected = true ; return true ; }
Connect to the database server

@throws \PDOException When fails to connect to database server
@return boolean
Connect to the database server