Hi,
I just want to know how the transaction can be made when we give only credit card number in the internet. what are the payment gateways are available for online shopping through PHP page. How it is secured?

can anyone help me to know these things?

__________________
With,
J. Jeyaseelan
Everything Possible

hi here, few things about payment gateway...

Working of Payment Gateway

• Visitor places the order on website and it is sent to the merchant™s web server in encrypted format. This is usually done via SSL(Secure Socket Layer) encryption.
• The transactions details are then forwarded to the concerned Payment Gateway.
• The transaction information is then passed on to the merchants acquiring bank by the Payment Gateway.
• Merchants acquiring bank then forwards the transaction information to the issuing bank (one that issued the credit card to the customer).
• Then the card issuing bank sends a response back to the Payment Gateway. The response includes information that whether the payment has been approved or declined. In case of declination the reason is also send in the response.
• The response is then forwarded by the Payment Gateway to the merchant's server.
• At merchant's server the response is encrypted again and is relayed back to the customer. This allows the customer to know that whether the order has been placed successfully or not.
• The entire process typically takes less than 5 seconds. At the end of the bank day (or settlement period) the acquiring bank(or card issuing bank) deposits the total of the approved funds in to the merchants nominated account.

Attached Images

payment_gateway.jpg (18.5 KB, 3 views)

A payment gateway is an e-commerce application service provider service that authorizes payments for e-businesses, online retailers etc..

A payment gateway facilitates the transfer of information between a payment portal (such as a website or IVR service) and the Front End Processor or acquiring bank; quickly and securely.

When a customer orders a product from a payment gateway enabled merchant, the payment gateway performs a variety of tasks to process the transaction; completely invisible to the customer. For example:

*A customer places order on website by pressing the 'Submit Order' or equivalent button, or perhaps they enter their card details using an automatic phone answering service.

*If the order is via a website, the customer's web browser encrypts the information to be sent between their browser and the merchant's webserver. This is usually done via SSL (Secure Socket Layer) encryption.

*The merchant then forwards the transaction details through to their payment gateway which holds the detail of their merchant account transaction. This is often another SSL encrypted connection to the payment server hosted by the payment gateway.

*The payment gateway which receives the transaction information from the merchant forwards it to the merchant's acquiring bank.

*The acquiring bank then forwards the transaction information to the issuing bank (the bank that issued the credit card to the customer) for authorization.

*The card issuing bank receives the authorization request and sends a response back to the payment gateway (via the acquiring bank) with a response code. In addition to determining the fate of the payment, (i.e approved or declined) the response code is used to define the reason why the transaction failed (such as insufficient funds, or bank link not available).

*The payment gateway receives the response, and forwards it on to the website (or whatever interface was used to process the payment) where it is interpreted and a relevant response then relayed back to the customer.

*The entire process typically takes 3-4 seconds

*At the end of the bank-day (or settlement period) the acquiring bank deposits the total of the approved funds in to the merchant's nominated account. This could be an account with the acquiring bank if the merchant does their banking with the same bank, or a scrape account with another bank.

-V.Vadivelan

Common payment gateways
AssureBuy
Authorize.net
BluePay
Bucks Net Services
Chase Paymentech (Orbital Gateway)
Creditcall
Ctel Technologies
Cybersource
eKashu
eMatters
First Atlantic Commerce
iTransact
LinkPoint (owned by FirstData)
Network Merchants
Payment Express
Paypal
Plug 'n Pay
ProPay
PSBill
PayJunction.com
SafeMerchant Payment Gateway
Skipjack Financial Services
Soeasypay
Shift4
VaultLine
Verepay Technologies
VeriSign Payflow (Owned by PayPal)
Viaklix (owned by USBank)