Web design and development is mostly concerned with the domain of the internet and outside of context of the world wide web it is meaningless. Therefore, a great deal of learning will happen online. There are many online degree programs and online universities you can sign up for and you can even get certification to demonstrate your proficiency.
Free online instruction:
- Codecademy - another great step by step interactive coding tutorial to learn web programming, one of my favorites for php.
- Kahn Academy - free online instruction for many things.
- Wikihow - Learn just about anything with wiki style community instruction tutorials including education for web design and development.
Learn more about online education programs and how to get an online college degree.