Paypal is very renounce payment method.Most of the website and web application such as e-commerce,voluntary,course base web project us using paypal for their payment method.Where is need to transaction there mostly use paypal and some other popular payment method.Here we see how to use paypal form in a project.It’s very easy to use paypal form.Only need to add some html code,which provided from paypal.For testing a paypal transaction at first you need to open a paypal sandbox account.Go here for signup
Then create a account with your information.
Then use this form in your html where you want to show this
Paypal Form in Html
In this form there is input box name is business use here your created sandbox email
Look one of the field is return use here the redirect url
Enjoy! With Paypal