I can easily do this. This is what I would do:
1. Create the web form in php.
2. Inside the form, will do validations for email address, name and other mandatory fields.
3. Validations would be done after the user submits the page
4. Save the web form to a csv file.
5. For saving to a Database, including MySql, I would need to the DB schema details, and others, which would add up the cost.