I started my carrier from PHP, as quick change I shifted into Rails. I learned rails by the Ebook FriendsofED.Rails.Solutions.Ruby.on.Rails.Made.Easy. In the recent years you may get lot of new and good books. But I prefer this old book is good and easier for the beginners to learn ROR very quickly.
You can download this file:
- 34 Ruby on Rails 3 resources to get you started | Adventures In Coding (adventuresincoding.com)
- Looking for Work? Learn Ruby On Rails (devx.com)
- The Ruby on Rails 3 Tutorial Book (with PDF downloads) is out (railstutorial.org)