In a new post to his site Tomas Votruba talks about the benefits of writing SOLID code and uses a more real-world example rather than talking about SOLID in theory.

Use SOLID to write Clean Code... Are you tired of theoretical post about how to do achieve some therm? So am I. Instead, let's dive into real problems I came across while coding and let the code speak the theory between lines.

Today we try to add own config option to YAML of Easy Admin Bundle (without pull-request to the package).

In his example, he works with a training platform he's creating for use by the Pehapkari community that makes use of the EasyAdminBundle. He starts off with what he's trying to accomplish ("the need"): being able to change only certain pieces of information. He then walks through the process he followed to customize the form and "getting creative" to be able to add items to the form without having to add each individually. He walks about his "wandering" through the code to look for a solution and, ultimately, how he found the answer using another configuration file.