javascript - What knowledge do you need to learn when moving from front-end development to back-end development?

Since I recently trained on some front-end knowledge, html css JavaScript JQuery knowledge, I thought about these things and wrote them later, and also operated some page special effects.
The teacher said that after writing script 6, you can transition to backend development. As for what knowledge should be accumulated for backend development? Recently, I am self-studying PHP. Since my major in college is software, it is relatively fast to get started with natural language, but I don’t know how to go in depth.

To be honest, the teacher has been giving us design homework recently, using PS to design the page, and I feel a little nauseous while doing it. Dear working veterans, are you exposed to a lot of design things in your work?

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Since I recently trained on some front-end knowledge, html css JavaScript JQuery knowledge, I thought about these things and wrote them later, and also operated some page special effects.
The teacher said that after writing script 6, you can transition to backend development. As for what knowledge should be accumulated for backend development? Recently, I am self-studying PHP. Since my major in college is software, it is relatively fast to get started with natural language, but I don’t know how to go in depth.

To be honest, the teacher has been giving us design homework recently, using PS to design the page, and I feel a little nauseous while doing it. Dear working veterans, are you exposed to a lot of design things in your work?

First, distinguish the situation. Is it a business need or is it just a matter of learning?

Business needs:

It’s easy to learn. You can learn from specific business logic processing. Language is not the most important. If you don’t have any personal preference, you can choose nodejs, python, java, etc.

Simple learning:

It is recommended to take a look at the current employment situation. Although Java is old, it still has great advantages and is easier to find a job. In fact, nodejs still has a lot of pitfalls... In addition, consider whether it is your own resources or personal hobbies. After all, coding is still It's better to be happy, right?

Overall

No matter what you learn, front-end or front-end, it doesn’t matter. The key is what you want. If you think PS is troublesome and don’t like front-end, learn back-end because of this. I think it’s really a matter of whether you will be able to do back-end or something in the future. Will you get tired of it? Do you want to go into sales at that time?

Finally, no matter what you study, you should calm down first. Personal suggestions are welcome to discuss

I suddenly wanted to post a picture

JS full-stack development, Node’s novel ideas

You can learn ps and even flash, it is necessary to understand how to cut pictures and understand the principles of animation frames;

In the early days of the backend, learn nodejs and understand the http request process. This is the basis for developing network programs. Learn some basic framework installation;

If you have the energy, you can learn python which is very convenient for various back-end file and data processing. Foreign universities use this language as an introductory language for editing. It is quite user-friendly, easy to learn and use;

Newcomers should learn more about all aspects and practice debugging;