What knowledge do you need to know about PHP backend?

php backend requires mastering PHP basic knowledge, web development technology, database knowledge, server and operation and maintenance knowledge, security knowledge, frameworks and libraries. 1. Basic knowledge of PHP, which is crucial for writing high-quality code and solving some common problems; 2. Web development technology, which enables developers to handle front-end interaction and dynamic page development; 3. Database knowledge, which can help Developers can better design database structures and write high-performance database operation codes; 4. Server and operation and maintenance knowledge to facilitate development and management work, etc.

The operating environment of this tutorial: windows10 system, php8.1.3 version, DELL G3 computer.

PHP is a commonly used back-end development language. For developers who want to succeed in this field, mastering some basic knowledge is essential. This article will introduce some key knowledge required for PHP back-end development.

1. Basic knowledge of PHP:

As a back-end development language, you first need to be familiar with basic concepts such as PHP’s basic syntax, variables, data types, and operators. and usage. Mastering the basics of PHP is crucial to writing high-quality code and solving some common problems.

2. Web development technology:

PHP back-end development is inseparable from Web technology. Therefore, familiarity with HTML, CSS, and Javascript is necessary. Master HTML It allows developers to better understand the structure of Web pages. Mastering CSS can help developers design and layout pages. Additionally, Javascript It is a scripting language used for writing interactive web applications. Mastering it enables developers to handle front-end interactions and the development of dynamic pages.

3. Database knowledge:

Most web applications need to interact with the database, so mastering database knowledge is a must. Developers need to be familiar with relational databases (such as MySQL) and non-relational databases (such as MongoDB). Understanding the basic concepts of databases, SQL language and data query optimization techniques can help developers better design database structures and write high-performance database operation codes.

4. Server and operation and maintenance knowledge:

When deploying and maintaining web applications, it is very important to understand server and operation and maintenance knowledge. Familiar with the Linux operating system and command line tools can make developers more convenient to develop and manage servers. In addition, understanding the configuration and operation and maintenance technologies of web servers such as Apache or Nginx, as well as some common operation and maintenance tools (such as Git, Docker, etc.) are also necessary skills.

5. Security knowledge:

The security of Web applications is a very important issue. Developers need to know how to write secure code and prevent common Attack methods, such as SQL injection, cross-site scripting (XSS) and cross-site request forgery (CSRF), etc. Familiarity with security standards and best practices can help developers better protect user data and applications.

6. Frameworks and libraries:

Mastering some commonly used PHP frameworks and libraries is very helpful to improve development efficiency and quality. for example PHP frameworks such as Laravel, Symfony, and CodeIgniter can speed up development and provide some common functions and modules. In addition, some commonly used libraries and components, such as Composer, PHPUnit, Guzzle, etc., are also tools that developers need to understand and use.

In summary, PHP back-end development requires mastering some basic knowledge, including basic PHP knowledge, Web development technology, database knowledge, server and operation and maintenance knowledge, security knowledge, and some commonly used frameworks and libraries . In-depth understanding and mastery of this knowledge will make developers better in the field of PHP back-end development and bring better experiences and effects to users and projects. .

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