Filling out a form, creating a document and sending it to the mail, what is the best way to implement it?

Question

PHP

There is a need to create a form on the page with several standard fields such as:
-full name -phone
number
-email
-passport data
Consent to the processing of personal data and acceptance of the offer, a link to the contract and the "Accept" button.
After that, the data is substituted into the standard contract form and a copy of the contract in doc or pdf format is sent to the mail of the person who filled out this form.
What tools and libraries is the best way to implement this solution?

Answer 1

HTML (form) + PHP (validation on the server, sending email) + JS (jQuery - effects, validating forms before sending). Done in an hour.
No libraries are needed other than jQuery Bootstrap for speed if the form needs to be spanked quickly and efficiently.

Answer 2

Can you tell me why this question has the tag: "Documentation"?