public static function connect()
    {   
        self::getEnv();
        return new PDO(self::$driver.':host='.self::$host.';dbname='.self::$dbname, self::$user, self::$pass);
    }
public static function connect()
    {   
        self::getEnv();
        return new PDO(self::$driver.':host='.self::$host.';dbname='.self::$dbname, self::$user, self::$pass);
    }
public static function connect ( ) { self :: getEnv ( ) ; return new PDO ( self :: $ driver . ':host=' . self :: $ host . ';dbname=' . self :: $ dbname , self :: $ user , self :: $ pass ) ; }
Create PDO connections

@return PDO
Create PDO connections