It is really difficult to get started with PHP. There are many warnings when running. Is it a configuration problem?

Question

I have a lot of free time at work, so I wanted to learn a web language to enrich myself, so I installed wamp2.4 and bought a basic book. When typing code against a book, most of the code will give warnings when running, especially MYSQLI, which has the highest error rate. I would like to ask all the experts, do you need to configure anything else for wamp? It has been more than ten days, and even the function of inserting into the data table has not been implemented.

Answer 1

From Entry to Prison

Answer 2

Let’s xampp