Hello guy can anyone explain how to make eCommerce website with JavaScript and Php

Answer 1

If you just want ecommerce to be developed the best solution would be using ecommerce platform like magento.
Take a look at payment APIs. Or in general how to use any API.
paypal, stripe, braintree
The rest is mostly just CMS which you should definite handle before doing any ecommerce sites.

Answer 2

Thanks Toni