Why ruby on rails?

[thomosmax]

Why developers like ruby on rails and how it is better then PHP and other developing languages?

[arianagrand]

Ruby on Rails is a framework used for ruby programming and is written in ruby language. It is commonly known as RoR......

[stevex]

Ruby is superior to the PHP + and other existing PHP frameworks. I like to work with Ruby more than PHP.

[maxi007]

ruby is newest techno . of course it covers some php bugs

[singhabhishek25]

I am also not familiar with this new concept, but this is not something new and is there in the market from quite some time. I am still not satisfied with the answers above and they are not clear to me. I too want to understand how they are superior than php.