How to make payment gate way?

[eluser]barryskidmore[/eluser]

Code:

case 24:
                        $this->x_result['Email'] = $this->x_actual_string;
                        break;
                    case 25:
                        $this->x_result['ShipFirstName'] = $this->x_actual_string;
                        break;
                    case 26:
                        $this->x_result['ShipLastName'] = $this->x_actual_string;
                        break;
                    case 27:
                        $this->x_result['ShipCompany'] = $this->x_actual_string;
                        break;
                    case 28:
                        $this->x_result['ShipAddress'] = $this->x_actual_string;
                        break;
                    case 29:
                        $this->x_result['ShipCity'] = $this->x_actual_string;
                        break;
                    case 30:
                        $this->x_result['ShipState'] = $this->x_actual_string;
                        break;
                    case 31:
                        $this->x_result['ShipZip'] = $this->x_actual_string;
                        break;
                    case 32:
                        $this->x_result['ShipCountry'] = $this->x_actual_string;
                        break;
                    case 33:
                        $this->x_result['Tax'] = $this->x_actual_string;
                        break;
                    case 34:
                        $this->x_result['Duty'] = $this->x_actual_string;
                        break;
                    case 35:
                        $this->x_result['Freight'] = $this->x_actual_string;
                        break;
                    case 36:
                        $this->x_result['TaxExempt'] = $this->x_actual_string;
                        break;
                    case 37;
                        $this->x_result['PurchaseOrder'] = $this->x_actual_string;
                        break;
                    case 38:
                        $this->x_result['MD5Hash'] = $this->x_actual_string;
                        break;
                    case 39:
                        $this->x_result['CodeResponse'] = $this->x_actual_string;
                        break;
                    default:
                        $this->x_result[$this->x_position] = $this->x_actual_string;;
                        break;
                    
                }
                // Clean up for next pass
                $this->x_response = substr($this->x_response,$this->x_position);
            }
        }
        return $this->x_result;
    }