[Luis-]

I don't tend to use Photoshop when I'm designing a website, just need to know CSS ( You might decide to use Photoshop in the future, but in my opinion, CSS is much easier. ) you can learn the basics of PHP, HTML & CSS on w3schools or you could just do a quick ****** search what ever you find easier.

For now, if I was you, I'd just learn HTML & CSS, then move onto PHP, seeing as HTML is the basic code to make a website and CSS is the design of the website.

Also, good luck with it. I find developing websites quite relaxing actually!