public function __construct($host, $user, $password, $database = "mysqlslideshow", $table = "mysqlslideshow")
 {
     $database = is_null($database) ? 'mysqlslideshow' : $database;
     $table = is_null($table) ? 'mysqlslideshow' : $table;
     $this->table = $table;
     // Call the Database constructor
     parent::__construct($host, $user, $password, $database);
     // open the database
 }