Preface to multi-level architecture design

Because PHP is originally designed to assist the generation of HTML, so program code and HTML code are mixed together. This is the characteristic and advantage of PHP, but it also causes many problems in division of labor. That is, while you are writing PHP, you are You must also have a good understanding of front-end and back-end skills, such as DataBase, HTML, css, JavaScript, etc.

In this situation, it is difficult to find new people to develop. You can get a glimpse of this situation from the job advertisements. Below I found a job advertisement to show you his job requirements. You will know that there are various problems. How serious it is:

1. Have experience in website construction and programming.
2. Familiar with PHP programming language.
3. Familiar with MySQL database.
4. Understand HTML, Java Script, CSS, jQuery and other web technologies.
5. Serious and responsible, and hope to continue to improve in programming and web technology.

The above are the skills that a certain company is looking for PHP programmers. It can be seen that it is really difficult to be a PHP programmer. You need to know almost everything.
While the developers secretly scolded the boss for having too high job requirements, it was also a headache for the boss because it was not easy to find talents who could do everything. And the point was, he couldn’t help it. More salary.
Under such a background, in the end, we can only find one person who knows a little bit about everything. Have you ever heard the story of Wu Shu, who has no skills?
He knows a little bit about everything, but conversely, he is not familiar with anything.

So I often say that technology comes from human nature, management comes from demand, and demand can be created by companies.

In addition, I found the job application conditions for another job vacancy and let you compare. His job title is

Working conditions:

1. Daily website production and maintenance updates
2. Event website production and maintenance updates
3. Creative ideas
4. Enthusiasm for research
5. Good team working ability
6. Ability to independently complete DIV+CSS cutting (PSD to HTML)
7. Mobile website development experience
8. Familiar with multi-browser CSS Adjustment
9. Proficient in using JQuery

The requirements for each job are much less than the previous one, but the point is that the salaries of the two jobs are similar. So, are you a developer? How to choose Le.
This also gives everyone a way to think. When everyone comes to work or start a company, they must pay attention to the return on investment. For developers, it is to obtain the maximum new capital with the least learning cost.
For business owners, your talents are The fewer working conditions required, the lower your costs will generally be.

Therefore, in recent years, we can see the emergence of many multi-level architecture design theories. For website development, the most commonly heard is MVC, which is Model – View – Control.

But to really be able to divide the work well, you don’t actually need advanced design theory or advanced technology.

You only need an architect in the company's system to control it. Of course, each role needs someone who is senior enough, capable of doing things movingly, and powerful enough to grab resources (how does it sound like the boss himself).

The job of this role is as follows:

Conduct regular Code Review to check whether the writing of the code complies with the standards.
Convene regular meetings with supervisors to review the company's utility libraries, underlying architecture, and usage issues of current development projects
Regularly review whether the company's vision and underlying architecture are compatible

In fact, the above does not sound complicated, it's just Just have the execution ability to do it.

The above introduces the preface of multi-level architecture design, including the content of architecture design and preface. I hope it will be helpful to friends who are interested in PHP tutorials.