My attempt to explain SOLID principles in simple words:

Feel free to ask questions and criticize the writing.

Do you have some example to use SOLID principles in Yii Framework? It would be nice to have a SOLID project template, near to basic/advanced/micro.

They’re everywhere. Yii follows SOLID here and there but in many places goes against it. SOLID is a set of good advices but if you know what you’re doing you can not follow em in some cases.