I am creating a shopping portal where each customer will post their products and we will be providing a separate username and password for that customer once payment has been made. So I need to create an URL link separately for each customer so that it will show the products of that particular customer.

For example like Facebook if I create a separate account, my page becomes (https://www.facebook.com/dinesh.darkknight) where my own details or the posts has been shown. Like that, I need a separate page for each customer in my site (www.seloncart.com/customername). Once I give that customer name it should show the products posted by that customer alone.