目前在学PHP的Slim3框架,里面有一个PSR-7的概念,看了一下,好像就是把原来的PHP的一些全局变量给封装了一下,更OOP一点,之前也接触过Django,感觉上和WSGI很像。不知道这两个是不是就是一类东西。
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目前在学PHP的Slim3框架,里面有一个PSR-7的概念,看了一下,好像就是把原来的PHP的一些全局变量给封装了一下,更OOP一点,之前也接触过Django,感觉上和WSGI很像。不知道这两个是不是就是一类东西。
好吧 来看看官网的描述你就知道了。
1.WSGI
WSGI is the Web Server Gateway Interface. It is a specification that describes how a web server communicates with web applications, and how web applications can be chained together to process one request.
WSGI is a Python standard described in detail in PEP 3333.
PSR-7
PSR-7: HTTP message interfaces
This document (HTTP message desribetion) describes common interfaces for representing HTTP messages as described in RFC 7230 and RFC 7231, and URIs for use with HTTP messages as described in RFC 3986.
应该能够看出来差别了。
WSGI是一个 Web Server Gateway Interface
,也就是 服务器网关接口 ,这玩意描述了 Web server怎么样和你的python cgi程序之间交流,说说话啥的,我这边有啥任务了,你来做,做完了把结果告诉我,我告诉浏览器那家伙去。
那么 PSR-7
呢?它是 PSR
家族的一个最新的成员,是一个 HTTP message interfaces
。对,这就和python 和 php 之间作为web开发语言之间的差异有关系了。 也就是说, PSR-7
定义了一套标准,来标准化使用PHP来进行HTTP通信,替换PHP本身提供的那些超全局变量,因为他们略显拙劣。

PHP is used to build dynamic websites, and its core functions include: 1. Generate dynamic content and generate web pages in real time by connecting with the database; 2. Process user interaction and form submissions, verify inputs and respond to operations; 3. Manage sessions and user authentication to provide a personalized experience; 4. Optimize performance and follow best practices to improve website efficiency and security.

PHP uses MySQLi and PDO extensions to interact in database operations and server-side logic processing, and processes server-side logic through functions such as session management. 1) Use MySQLi or PDO to connect to the database and execute SQL queries. 2) Handle HTTP requests and user status through session management and other functions. 3) Use transactions to ensure the atomicity of database operations. 4) Prevent SQL injection, use exception handling and closing connections for debugging. 5) Optimize performance through indexing and cache, write highly readable code and perform error handling.

Using preprocessing statements and PDO in PHP can effectively prevent SQL injection attacks. 1) Use PDO to connect to the database and set the error mode. 2) Create preprocessing statements through the prepare method and pass data using placeholders and execute methods. 3) Process query results and ensure the security and performance of the code.

PHP and Python have their own advantages and disadvantages, and the choice depends on project needs and personal preferences. 1.PHP is suitable for rapid development and maintenance of large-scale web applications. 2. Python dominates the field of data science and machine learning.

PHP is widely used in e-commerce, content management systems and API development. 1) E-commerce: used for shopping cart function and payment processing. 2) Content management system: used for dynamic content generation and user management. 3) API development: used for RESTful API development and API security. Through performance optimization and best practices, the efficiency and maintainability of PHP applications are improved.

PHP makes it easy to create interactive web content. 1) Dynamically generate content by embedding HTML and display it in real time based on user input or database data. 2) Process form submission and generate dynamic output to ensure that htmlspecialchars is used to prevent XSS. 3) Use MySQL to create a user registration system, and use password_hash and preprocessing statements to enhance security. Mastering these techniques will improve the efficiency of web development.

PHP and Python each have their own advantages, and choose according to project requirements. 1.PHP is suitable for web development, especially for rapid development and maintenance of websites. 2. Python is suitable for data science, machine learning and artificial intelligence, with concise syntax and suitable for beginners.

PHP is still dynamic and still occupies an important position in the field of modern programming. 1) PHP's simplicity and powerful community support make it widely used in web development; 2) Its flexibility and stability make it outstanding in handling web forms, database operations and file processing; 3) PHP is constantly evolving and optimizing, suitable for beginners and experienced developers.


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