I have written articles about Yii on the Sina blog before. After coming to the blog park, I have not written any articles about Yii. It happened that I had nothing to do during the Dragon Boat Festival holiday, so I combined the previous blog, Yii’s official documents, and the recent about Summarize the gains from Yii and write a series~~ Yii is a high-performance component-based PHP framework for developing large-scale web applications. Yii is written in strict OOP and has complete library references and comprehensive tutorials. From MVC, DAO/ActiveRecord, widgets, caching, hierarchical RBAC, web services, to theming, I18N and L10N, Yii provides almost everything needed for today's Web 2.0 application development. In fact, Yii is one of the most efficient PHP frameworks. Yii is a high-performance PHP5 web application development framework. A simple command line tool yiic can quickly create a web application code framework. Developers can add business logic based on the generated code framework to quickly complete application development. Install YiiBefore installing Yii, you must configure your development environment, such as a web server that supports PHP5.1.0 or above. Yii has been tested on the Apache web server on Windows and Linux operating systems. It may also run on web servers that support PHP5 on other platforms. There are many free resources published on the Internet, and you may get a web server environment configured with PHP5. Here we will leave aside the web server and PHP5 installation. The installation of Yii is actually very simple. It only requires two steps:
Create a new app
Your application has been successfully created under /WebRoot/demo. The purpose of this webapp command is to create a brand new Yii application. It only requires specifying a parameter, whether it is an absolute or relative path and the application will be created. The directories and files it generates are just a skeleton of the application.
At this time, without writing a line of code, we can access the following URL in the browser to see our first Yii application:
As we will see, this application contains three pages: homepage, contact page, and login page. The home page displays some information about the application and the user's login status, the contact page displays a contact form for users to fill out and submit their inquiries, and the login page allows users to first authenticate and then access authorized content. ConfigurationIn this application, no matter which page URL you go to, index.php is included. What should I do if I want to remove it? 1. Open apache's mod_rewrite module, remove the "#" symbol in front of LoadModule rewrite_module modules/mod_rewrite.so, and make sure there is "AllowOverride All" in
3. Configure the server, Yii can be configured under Apache and Nginx 1)Apache Under the Apache server, Yii needs to configure the .htaccess file. The configuration is as follows
2) Nginx Yii can use Nginx and PHP’s FPM SAPI. The configuration is as follows
Using the above configuration, you can set cgi.fix_pathinfo=0 in php.ini, which can avoid many unnecessary system stat() calls.
Basic installation and configuration ends here~~
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What’s still popular is the ease of use, flexibility and a strong ecosystem. 1) Ease of use and simple syntax make it the first choice for beginners. 2) Closely integrated with web development, excellent interaction with HTTP requests and database. 3) The huge ecosystem provides a wealth of tools and libraries. 4) Active community and open source nature adapts them to new needs and technology trends.

PHP and Python are both high-level programming languages that are widely used in web development, data processing and automation tasks. 1.PHP is often used to build dynamic websites and content management systems, while Python is often used to build web frameworks and data science. 2.PHP uses echo to output content, Python uses print. 3. Both support object-oriented programming, but the syntax and keywords are different. 4. PHP supports weak type conversion, while Python is more stringent. 5. PHP performance optimization includes using OPcache and asynchronous programming, while Python uses cProfile and asynchronous programming.

PHP is mainly procedural programming, but also supports object-oriented programming (OOP); Python supports a variety of paradigms, including OOP, functional and procedural programming. PHP is suitable for web development, and Python is suitable for a variety of applications such as data analysis and machine learning.

PHP originated in 1994 and was developed by RasmusLerdorf. It was originally used to track website visitors and gradually evolved into a server-side scripting language and was widely used in web development. Python was developed by Guidovan Rossum in the late 1980s and was first released in 1991. It emphasizes code readability and simplicity, and is suitable for scientific computing, data analysis and other fields.

PHP is suitable for web development and rapid prototyping, and Python is suitable for data science and machine learning. 1.PHP is used for dynamic web development, with simple syntax and suitable for rapid development. 2. Python has concise syntax, is suitable for multiple fields, and has a strong library ecosystem.

PHP remains important in the modernization process because it supports a large number of websites and applications and adapts to development needs through frameworks. 1.PHP7 improves performance and introduces new features. 2. Modern frameworks such as Laravel, Symfony and CodeIgniter simplify development and improve code quality. 3. Performance optimization and best practices further improve application efficiency.

PHPhassignificantlyimpactedwebdevelopmentandextendsbeyondit.1)ItpowersmajorplatformslikeWordPressandexcelsindatabaseinteractions.2)PHP'sadaptabilityallowsittoscaleforlargeapplicationsusingframeworkslikeLaravel.3)Beyondweb,PHPisusedincommand-linescrip

PHP type prompts to improve code quality and readability. 1) Scalar type tips: Since PHP7.0, basic data types are allowed to be specified in function parameters, such as int, float, etc. 2) Return type prompt: Ensure the consistency of the function return value type. 3) Union type prompt: Since PHP8.0, multiple types are allowed to be specified in function parameters or return values. 4) Nullable type prompt: Allows to include null values and handle functions that may return null values.


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