PHP Implementation Example

                        // Set up the request parameters
                        $MyVars = array(
                            'MerchantKey' => 'YOUR_MERCHANT_KEY', // Merchant Key
                            'amount' => '19.99', // Amount to be paid
							'currency' => 'EUR', // Currency (EUR or USD)
                            'RefOrder' => 'ORDER-', // Reference Order number (must be unique)
                            'Customer_Email' => 'jofhen785@gmail.com', // Customer's email
                            'Customer_Name' => 'Doe', // Customer's Last Name
                            'Customer_FirstName' => 'John', // Customer's First Name
                            'country' => 'France', // Customer's country
                            'userIP' => $_SERVER['REMOTE_ADDR'], // Customer's IP
                            'lang' => 'en', // Language
                            'store_name' => 'Example Store',
                            'urlOK' => 'https://your-domain.com/success',
                            'urlKO' => 'https://your-domain.com/failed',
                            'ipnURL' => 'https://your-domain.com/ipn'
                        );

                        // Clone data BEFORE adding signature
                        $varsToSign = $MyVars;

                        // Secure signature
                        $secret_key = 'YOUR_SECRET_KEY'; // provided by Payblis server-side only
                        $signature = hash_hmac('sha256', json_encode($varsToSign), $secret_key);

                        // Add signature after calculation
                        $MyVars['signature'] = $signature;
                        
                        // Encoding
                        $serializedData = serialize($MyVars);
                        $encoded = base64_encode($serializedData);
                        
                        // Redirect to secure payment page
                        $paymentUrl = "https://pay.payblis.com/api/payment.php?token=" . $encoded;
                        header("Location: " . $paymentUrl);
                        exit;