How are Ruby and Rails related?

Question

First of all, i want some clarification :)

1) Is RoR like a server scripting language?

2) Can it be used as an alternative to php?

I started learning Ruby from The Ruby Programming Language book and haven't yet come across something which relates to the web. Is Ruby for desktop apps and Rails for web apps?

Thanks

Answer 1

ruby - dynamic programming language
ruby on rails - framework for creating web apps written in ruby

Answer 2

Ruby is an all-purpose scripting language. There are GUI toolkits for Ruby, sure.

Rails is a web framework implemented in Ruby, which can be used to develop web apps - as an alternative to PHP.