Simple websites for local business's - Do I NEED to know PHP (or equiv)?

[etui342]

Hi

I'm setting up a website to set up websits for business's. I will either make it from a psd>xhtml/css or just modify a wordpress theme.
Was speaking to someone today and he reckons I need to have knowledge of PHP. Is this correct? I'm sure if people want a more complicated website I could base it off wordpress - and for example if somone just wants a simple site I can do psd>xhtml/css?

Thanks!

[delois]

I don't think it is necessary to have knowledge of PHP. There are websites which provide tools to create basic website without having knowledge of PHP or any other programming language. You can also add payment procedure on your own site if you are selling products with use of third party tools.