HostFact

public static function getBackofficeSettings()
{
	$settings = array();
	$settings['InternalName'] = 'Your Payment Provider';
	
	$settings['MerchantID']['Title'] = "User ID";
	$settings['MerchantID']['Value'] = "";
	
	$settings['Password']['Title'] = "Password";
	$settings['Password']['Value'] = "";
			
	$settings['Advanced']['Title'] = "Pay by Your Payment Provider";
	$settings['Advanced']['Image'] = "yourpaymentprovider.jpg";
	$settings['Advanced']['Extra'] = "Please select your payment method:";
	
	$settings['Hint'] = "First create an active profile for your website.";
	
	return $settings;
}

function __construct()
{
	$this->conf['PaymentDirectory'] = 'your.classname';
	$this->conf['PaymentMethod'] 	= 'other'; // ideal / paypal / other
	
	// Load parent constructor
	parent::__construct();

	// Load configuration
	$this->loadConf();
}

public function choosePaymentMethod()
{
	// If we don't need to ask for payment method upfront, just return false;
	return false;
	
	// Or get the payment methods and create HTML with options.		
	$html  = "<select name=\"my_creditcard\">";
	$html .= "<option value=\"\">Please select your creditcard</option>";
	$html .= "<option value=\"mastercard\">Mastercard</option>";
	$html .= "<option value=\"visa\">Visa</option>";
	$html .= "</select>";

	return $html;
}

public function validateChosenPaymentMethod()
{
	
	// If we don't need to ask for payment method upfront, return true (always valid)
	return true;
	
	// Or check the chosen payment methods and store in session		
	if(isset($_POST['my_creditcard']) && $_POST['my_creditcard'])
	{
		$_SESSION['my_creditcard'] = htmlspecialchars($_POST['my_creditcard']);
		return true;
	}
	elseif(!isset($_POST['my_creditcard']) && isset($_SESSION['my_creditcard']) && $_SESSION['my_creditcard'])
	{
		return true;
	}
	else
	{
		$this->Error = 'No creditcard chosen.';
		return false;
	}
}

public function startTransaction()
{		
	$chosen_creditcard = (isset($_SESSION['my_creditcard']) && $_SESSION['my_creditcard']) ? $_SESSION['my_creditcard'] : '';
	
	if($this->Type == 'invoice')
	{
		$orderID		= $this->InvoiceCode;
		$description	= __('description prefix invoice').' '.$this->InvoiceCode; 
	}
	else
	{
		$orderID		= $this->OrderCode;
		$description	= __('description prefix order').' '.$this->OrderCode; 
	}

	$amount	= $this->Amount;

	// Start transaction
	//TODO: implement here
	
	// If transaction can be started
	if(true)
	{	
		// If a transaction ID is known, update to database
    	//$this->updateTransactionID($transactionid);
		
		// Redirect
		header("Location: " . $url_to_payment_provider_transaction);
		exit;	
	}
	else 
	{
		// Return error message for consumer
        $this->paymentStatusUnknown($error_message);
        exit;
	}
}

public function validateTransaction($transactionID)
{

	if($this->isNotificationScript === true)
	{
		// Check if payment is succeeded
		$paid = true;
		
		if ($paid === true) 
		{
			// Update database for successfull transaction
        	$this->paymentProcessed($transactionID);
		}	
		else
		{
			// Update database for failed transaction
			$this->paymentFailed($transactionID);
		}
	}
	else
	{
		// For consumer (in this case the status is already changed by server-to-server notification script)
		if($this->getType($transactionID) && $this->Paid > 0){
			if($this->Type 	== 'invoice')
			{
				$_SESSION['payment']['type'] 			= 'invoice';
				$_SESSION['payment']['id'] 				= $this->InvoiceID;
			}
			elseif($this->Type 	== 'order')
			{
				$_SESSION['payment']['type'] 			= 'order';
				$_SESSION['payment']['id'] 				= $this->OrderID;
			}
			
			// Because type is found, we know it is paid
			$_SESSION['payment']['status'] 			= 'paid';
			$_SESSION['payment']['paymentmethod'] 	= $this->conf['PaymentMethod'];
			$_SESSION['payment']['transactionid'] 	= $transactionID;
			$_SESSION['payment']['date'] 			= date('Y-m-d H:i:s');				
		}
		else
		{
			$_SESSION['payment']['status'] 			= 'failed';
			$_SESSION['payment']['paymentmethod'] 	= $this->conf['PaymentMethod'];
			$_SESSION['payment']['transactionid'] 	= $transactionID;
			$_SESSION['payment']['date'] 			= date('Y-m-d H:i:s');		
		}					
		
		
		header("Location: ".IDEAL_EMAIL);
		exit;
		
	}
	
}