When to use Redis instead of MySQL for PHP applications?

Question

I\'ve been looking at Redis. It looks very interesting. But from a practical perspective, in what cases would it be better to use Redis over MySQL?

Answer 1

MySql -

1) Structured data 2) ACID 3) Heavy transactions and lookups.

Redis -

1) Non structured data 2) Simple and quick lookups. for eg - token of a session 3) use it for caching layer.