Backup semiautomatico del database

function dump(){
        set_time_limit(0);
        $path_to_save = APP.'work'.DS;        
        vendor('mysqlbackup/mysql_backup.class');
        
        $output = '';
        config('database');
        $dato = new DATABASE_CONFIG();

        $backup_obj = new MySQL_Backup();
        $backup_obj->server = $dato->default['host'];
        $backup_obj->port = 3306;
        $backup_obj->username =  $dato->default['login'];
        $backup_obj->password =  $dato->default['password'];
        $backup_obj->database =  $dato->default['database'];
        $backup_obj->tables = array();
        $backup_obj->drop_tables = true;
        
        $backup_obj->struct_only = false;
        $backup_obj->comments = true;
            
        $backup_obj->backup_dir = APP.'work/';
        $backup_obj->fname_format = 'm_d_Y';
        
        $task = MSB_SAVE;
        $filename = 'cakephp.sql';
        $use_gzip = false;
        
        $output .= '<b>DataFile = </b>'.$backup_obj->backup_dir.$filename."<br/>";
        
        if (!$backup_obj->Execute($task, $filename , $use_gzip))    {
            $output .= $backup_obj->error;
        } else {
            $output .= 'Operation Completed Successfully At: <b>' . date('g:i:s A') . '</b><i> ( Local Server Time )</i>';
        }    
        
        
        $this->set('messaggio',$output);
        
        $this->render('display');
    }