Social network sources in php framework?

Question

Yii

Dear experts on web technologies, please tell me such a thing - the source code of the social network. For training and alteration to fit your needs.
PHP language, possibly using modern frameworks like Yii or Laravel, or possibly micro frameworks like FatFree. Something that is well-known, with very high quality and correct code, actually used in various projects.
Preferably with good documentation (let me remind you, you need it for learning purposes - to see how to do such things correctly). For me, the best way to learn is to carefully study and comment on other people's good sources, and not write from scratch.
And it is a social network, not an online store :)

Answer 1

Social network on yii2: https://www.humhub.org/en

Answer 2

It seems to me that you are trying in vain to cross the uncrossable ... "Real social network", and even from a real project ... A project of the "real social network" scale and any framework are very little compatible with each other. Moreover, there will be no "quality" code, at least "quality for learning" - that's for sure. Look for a better CMS built on the basis of frameworks + module aka "social network" for this CMS. So right off the bat, I can name a few:
KodiCMS, OctoberCMS - on Laravel
Drupal 8 - on Symfony
There are also a lot of other CMSs built on the basis of CMF, for example, Joomla, for which there is a "social. sit" module, with a fairly high-quality (for learning) written code, often commented "do not play around at all", up to, there are more comments than code. Documentation, I think you can either find it or generate it yourself (if desired).