Which open framework to choose for organizing workflow?

Question

Document flow

A custom software development project is planned for organizing work with remote branches, the main functionality is: working with documents and orders, monitoring the execution of orders.
From the requirements for the framework: open source, ease of development (relative concept), modernity, the ability to work with open databases (Postgresql).

Answer 1

If PHP. then Symfony3 is great for medium and large projects + LTS releases.