When we learn to use Doctrine's ORM correctly, we can have a very powerful tool that allows us to get things done in very short time.

Before continue, you may want to check on this previous posts:

Doctrine's Object Relational Mapper and the Entity classes provide us developers a very easy way to deal with Table associations. When we define a One To Many / Many To One Table association, the best way to query results is from the One To Many

When you are using Symfony PHP Framework, the most common way to interact with Databases is using Doctrine. And if you are using a relational Database like MySql or MariaDb, you will need to handle Table Associations. One of the most common ones

To insert data using Symfony with Doctrine, you need to follow these steps:

Create an Entity Class

First, you need to create an entity class that represents the table in your database.