Mysql, Ajax login system?

I did find an old tutorial of this thats kinda out-dated, do anyone have ide of how i can make this?

So i wanna have a login page where pass and username comes from a database.

Get id from user table.

How is the tutorial not up to date ?

What tutorial is it ? Post the URL for it as there is not a single tutorial.

There is this one that appears to explain things clearly : https://www.scirra.com/tutorials/525/simple-login-using-a-mysql-database

Your question is about MySQL, you can do a search on an online search engine in order to learn about how MySQL works and how you can create requests for it.

Thanks for the reply. That tutorial you sent me is the one i mean. Look the comments as this one dose not work properly.