PHP vs Ruby vs Perl vs Python [on hold]

I am about to create a website with a backend service and I am wondering about which language or framework to chose. I need a language that I can learn (by books or videos) and that I can use in later on in my projects. Here are the 4 candidates: Thanks!

• Python

• Ruby

• PHP

• Perl

- More Candidates

• JavaScript Only

• Scala

• Java

• Go

• Hack

• Dart