Summary
In this chapter, we discovered the fundamentals of Doctrine. We now know what entities and Entity Managers are, we have installed Doctrine with the Composer dependency manager, we created the skeleton of our blog app, and we managed to get the command line tools up and running.
In the next chapter, we will create our first entity class, discover a lot of annotations to map it to the database, generate the database schema, and start dealing with entities. By the end of the next chapter, the post system of our blog will be working!
