i am doing group shopping cart. in this every product have group length. for suppose group length is 10 for abc product. then 8 members are registered for that product with there credit card details. when ever group length is reached to 10( group lenth means buyers of that product) admin can process the transaction. upto der fine..but this type of transactions are possible in paypal? ypu have any idea about this?


So, you want to have ten individual buyers for a product before you process any of the orders?
The most dangerous thing about this idea is holding credit card numbers in YOUR database. This NOT a good practice! In fact, if your site gets cracked, and those card #'s are stolen, the site owner will be held responsible.