What is the knowledge structure of a qualified PHP senior engineer?

What is the knowledge structure of a qualified PHP engineer? I personally think that a qualified PHP programmer at the 1% flagship store should have the following knowledge: 1. familiar with PHP syntax, familiar with most common PHP built-in functions, you can write most programs without using the manual. 2. familiar with object-oriented analysis and design methods. 3. familiar with basic database theories, SQL, and MYSQL. what is the knowledge structure of a qualified PHP engineer?
I personally think that a qualified PHP programmer in the 1% flagship store should have the following knowledge:
1. familiar with PHP syntax, familiar with most common PHP built-in functions, you can write most programs without using the manual.
2. familiar with object-oriented analysis and design methods.
3. familiar with basic database theories, SQL, and MYSQL. you can design an efficient database structure based on your business logic.
4. familiar with the Linux operating system. you can configure Apache/Nginx, MYSQL, and PHP by yourself.

If you are familiar with the syntax, you will not talk about it. that is the basic. Good PHPer I think should have the following features:
1. understand the HTTP protocol and the operating mechanism of the browser.
2. elegant code style, using common design patterns.
3. high-traffic database design and high-concurrency demand optimization solutions.
4. understand the underlying PHP operating mechanism and be able to write simple PECL extensions.
5. at least master the basic Linux operations and build mainstream webservers.

1. basic PHP syntax and usage
2. PHP Security knowledge
3. basic knowledge about SQL optimization and relational databases
4 Basic Linux operations, because many PHP functions have evolved from linux Commands
5 simple configuration of Apache and nginx