What is the right way to authenticate now?

Question

PHP

The bottom line is that I have a small project that needs to be authorized (that is, to show part of the functions only to authorized users).
How to implement such a function so as not to write everything from scratch? What is currently used for such tasks? Do you still have to pull the framework, or can you get by with some cheaper (in terms of labor costs) means? Microframeworks? Parts of other frameworks?
How to be?

Answer 1

You have several questions in a row with the phrases "I have a small project" and "I'll have to pull the framework", it's time to think.
frameworks and came up with what would reduce labor costs. So it's an alogism. A more correct question is "take a framework or kill yourself on your own bike?". You can argue which is better, but the fact that the framework is faster in time is a fact.
By authorization, there is ulogin , which speeds up the front and integration with social networks. And on the backend, I would still take some kind of framework