helper run driver

<?php
//==============HELPER UNTUK RUN DRIVER===
//==============untuk CI 3 only===========

if( ! function_exists('driver_run')){
    function driver_run($driver_core, $driver_name, $func_name='executed', $params=array()){
            $result=array('code'=>203,'data'=>false,'messages'=>'');
            log_info_table('driver',array($driver_core, $driver_name, $func_name));

/* no drivers core =============================== */
            $core_file=ucfirst(strtolower($driver_core));
            if(!is_file(APPPATH.'libraries/'.$core_file.'/'.$core_file.".php")){
                    $result['messages']=!is_local()?'no core driver file':'buatlah core drivernya di:'.APPPATH.'libraries/'.$core_file.'/'.$core_file.".php";
                    $result['error']=100;
                    return $result;
            }

            $CI =& get_instance();

            // log_add("run driver: $driver_core| $driver_name| $func_name");
            // log_add("parameter:".count($params));
/*  Kita butuh file config khusus untuk daftar driver  */
            $config_file='driver_gw';
            if(!is_file(APPPATH.'config/'.$config_file.".php")){
                    // log_add('buatlah confignya di:'.APPPATH.'config/'.$config_file.".php",'error');
                    $result['messages']=!is_local()?'no config file':'buatlah confignya di:'.APPPATH.'config/'.$config_file.".php\nbuatlah array confignya \$config['drivers_{$driver_core}']=array('{$driver_name}');" ;
                    $result['error']=101;
                    return $result;
            }

/*  Kita butuh config parameter untuk daftar driver  */

            //$CI->config->load($config_file);
            //$valid_drivers= $CI->config->item('drivers_'.$driver_core);
            $valid_drivers = config_site('drivers_'.$driver_core);
            if(is_null($valid_drivers)||$valid_drivers===false){
                    // log_add("buatlah array confignya \$config['drivers_{$driver_core}']=array();",'error');
                    $result['error']=102;
                    $result['messages']=!is_local()?'no config':"buatlah array confignya \$config['drivers_{$driver_core}']=array();" ;
                    return $result;
            }

/*  Kita butuh nilai parameter yang sesuai untuk daftar driver  */
            if(!in_array($driver_name,$valid_drivers)){
                    // log_add("buatlah nilai '{$driver_name}' pada array confignya \$config['drivers_{$driver_core}']=array('{$driver_name}');",'error');
                    $result['error']=103;
                    $result['messages']=!is_local()?'no config value': "buatlah nilai '{$driver_name}' pada array confignya \$config['drivers_{$driver_core}']=array('{$driver_name}');" ;
                    return $result;
            }

/* keberadaan file driver ====================================  */
            $core_file=ucfirst(strtolower($driver_core));
            $driver_file=ucfirst(strtolower($driver_core))."_".strtolower($driver_name);
            if(!is_file(APPPATH.'libraries/'.$core_file.'/drivers/'.$driver_file.".php")){
                    // log_add('buatlah file drivernya di:'.APPPATH.'libraries/'.$core_file.'/drivers/'.$driver_file.".php",'error');
                    $result['error']=104;
                    $result['messages']=!is_local()?'no driver':  'buatlah file drivernya di:'.APPPATH.'libraries/'.$core_file.'/drivers/'.$driver_file.".php" ;
                    return $result;
            }


            $CI->load->driver($driver_core);

/*  Kita butuh functionnya ==================================  */
            if( !method_exists($CI->{$driver_core}->{$driver_name}, $func_name) ){
                    // log_add('buatlah fungsi '.$func_name.'($params) pada file drivernya di:'.APPPATH.'libraries/'.$core_file.'/drivers/'.$driver_file.".php",'error');
                    $result['error']=105;
                    $result['messages']=!is_local()?'no function': 'buatlah fungsi '.$func_name.'($params) pada file drivernya di:'.APPPATH.'libraries/'.$core_file.'/drivers/'.$driver_file.".php" ;
                    return $result;
            }
            else{
                $result=$CI->{$driver_core}->{$driver_name}->{$func_name}($params);
                if(!isset($result['error'])){
                    $result['error']=false;
                }

                if(!isset($result['messages'])){
                    $result['messages']='success';
                }

                if(!isset($result['code'])){
                    $result['code']=200;
                }

            }

            return $result ;
    }

}

//==============mungkin bisa buat CI 4??=========