Symfony / PHP - Best way to store single value

Question

Assuming that I have an application running on Symfony 3.2 / Doctrine.

Question : What is the best way to store a single value that gonna change over some actions.

First thoughts : Im thinking that creating an Entity that is going to have a single property which will create a table with a single column that is going to have a single value (changing over some actions), is not an optimized solution.

I have also have thought about storing that value on a text file, but im saying that there might be another (better and more optimized) solution to this scenario.

Hint (if it can help) : My value is gonna be a generated PHP uniqid

Thank you in advance.

Answer 1

Symfony 3.1 included an interesting Cache component with multiple adapters (Filesystem, APCu, Redis...): http://symfony.com/doc/current/components/cache.html

As Symfony 3.2 the API seems to be confusing but Symfony 3.3 will include a SimpleCache API, way more elegant: http://symfony.com/blog/new-in-symfony-3-3-simple-cache