You need to get a payment gateway. I recommend using ECHO. I have worked with them with a few clients and have been very pleased. They have a variety of solutions that you can use. I recommend that you check them out. If you have any questions, let us know.
i ahve one doubt in
for example if one person enter his articles and press submit for billing . go to (for example payapal) server and get process/ i have doubt after entering the credit card ifo and got varified by payapall all his article should submit to my database. is this possible.
my doubt is very simple after submiting the article the credit car should vaildate then after payemnt all the article should go to my databse. which payment method i ahve to use . for thsi ECO is good?while processing it is leaving my server and going to Eco or paypal server and then after payment it should come to my server for sending all the article to my database