What are the things in php website

php website has server-side language, web server, database, front-end technology and other components. Detailed introduction: 1. Server-side language, PHP is a server-side scripting language, used to handle the background logic and data interaction of the website; 2. Web server, PHP website needs to run on a Web server that supports PHP, common Web Servers include Apache, Nginx, etc.; 3. Database, PHP websites usually need to use databases to store and manage data; 4. Front-end technology, etc.

The operating environment of this tutorial: Windows 10 system, PHP8.1.3 version, Dell G3 computer.

With the rapid development of the Internet, PHP (Hypertext Preprocessor) has become an important technology for building dynamic websites. PHP websites are rich in features and components to meet various needs. This article will discuss the composition and common functions of PHP websites to help readers gain a deeper understanding of the characteristics of PHP websites.

1. Composition of PHP website

PHP website is composed of multiple components and technologies. The following are several common components:

1. Server-side language: PHP It is a server-side scripting language used to handle the background logic and data interaction of the website. PHP can interact with a variety of databases (such as MySQL, Oracle) to achieve the generation and presentation of dynamic content.

2. Web server: The PHP website needs to run on a Web server that supports PHP. Common web servers include Apache, Nginx, etc. The web server is responsible for receiving HTTP requests and passing the requests to the PHP interpreter for processing.

3. Database: PHP websites usually need to use a database to store and manage data. Common database management systems include MySQL, PostgreSQL, etc. PHP communicates with the database through database extensions (such as MySQLi, PDO) to implement operations such as reading, storing, and updating data.

4. Front-end technology: PHP websites are usually combined with front-end technologies such as HTML, CSS, and JavaScript to achieve page layout and interactive effects. HTML code generated through PHP can be embedded in various front-end technologies and frameworks to achieve a richer user experience.

2. Common PHP website functions

PHP websites have rich functions and application scenarios, as follows:

1. User authentication and management: PHP websites can realize user Registration, login and rights management functions. By using session technology, the user's login status can be tracked and personalized services can be provided.

2. Database operation: As a server-side scripting language, PHP can interact with a variety of databases. PHP provides powerful database extensions that allow developers to easily perform database operations such as query, insert, update, and delete.

3. Dynamic content generation: PHP can generate dynamic web content and generate corresponding pages based on user requests and data. For example, PHP can generate news lists, online forums, and e-commerce websites with dynamic data.

4. File operation: PHP provides a wealth of file operation functions, which can realize operations such as reading, writing, copying, and deleting files. This is very useful for implementing functions such as file upload, file download and file management.

5. Mail processing: Through PHP's mail extension, you can send emails and process received emails. This is very important for implementing functions such as email subscription and password reset.

6. API development: PHP website can provide API (Application Programming Interface) as a server, allowing external applications to access and use the website's functions and data through the API interface.

7. Caching and performance optimization: PHP provides a variety of caching mechanisms (such as file caching, memory caching, database query caching, etc.), which can improve the access speed and performance of the website.

Conclusion:

PHP website is a powerful and flexible technology composed of multiple components and functions. This article introduces the composition and common functions of PHP websites, hoping that readers will have a deeper understanding of PHP websites. With the development of technology, PHP websites will continue to play an important role in the Internet world.

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