Want to understand how will active credit card payment , as every customer will enter his credit card details , then my site must check and take the payment to our banking account
There are many ways doing this. One is to use PayPal or any other Payment provider. For example, if you use PayPal then you need to setup PayPal payment plugin in your website so it would take payment from your customers using Credit / Debit cards. Then you need to configure your PayPal account and link it to your Bank account to transfer payment from PayPal to bank account.