How to install yii2
Yii2 installation: Install through composer
1. First, install composer.
2, Global settings for Composer using Chinese mirror: (Recommended learning: yii tutorial)
composer config -g repo.packagist composer https://packagist.phpcomposer.com
3, Installation composer-asset-plugin (If you do not install composer-asset-plugin, problems will occur when installing yii2 later. The latest version is installed by default here)
composer global require "fxp/composer-asset-plugin"
4. (1) Install the basic version, projectName is yourself project name.
composer create-project --prefer-dist yiisoft/yii2-app-basic projectName
(2) Install the advanced version. (The advanced version distinguishes the frontend and backend directories backend and frontend)
composer create-project --prefer-dist yiisoft/yii2-app-advanced projectName
Note: The advanced version needs to be initialized after installation. Double-click the "init.bat" file in the root directory and select "0" (indicating development environment). Then just select "yes" and the entry file will be automatically generated.
5, Configure the domain name information and you can access it. (The advanced version needs to configure the front and back domain names separately)
Possible problems:
Possible problems after installation: The vendor file cannot be found folder.
Cause: composer-asset-plugin is not installed or the version is too low
Solution: Find the root directory of the file, which is the composer.json file directory, open the command line and execute: composer update
The above is the detailed content of How to install yii2. For more information, please follow other related articles on the PHP Chinese website!

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics



The steps to containerize and deploy Yii applications using Docker include: 1. Create a Dockerfile and define the image building process; 2. Use DockerCompose to launch Yii applications and MySQL database; 3. Optimize image size and performance. This involves not only specific technical operations, but also understanding the working principles and best practices of Dockerfile to ensure efficient and reliable deployment.

In the Yii framework, the application can be protected by the following steps: 1) Enable CSRF protection, 2) Implement input verification, and 3) Use output escape. These measures protect against CSRF, SQL injection and XSS attacks by embedding CSRF tokens, defining verification rules and automatic HTML escapes, ensuring the security of the application.

YiiremainspopularbutislessfavoredthanLaravel,withabout14kGitHubstars.ItexcelsinperformanceandActiveRecord,buthasasteeperlearningcurveandasmallerecosystem.It'sidealfordevelopersprioritizingefficiencyoveravastecosystem.

When preparing for an interview with Yii framework, you need to know the following key knowledge points: 1. MVC architecture: Understand the collaborative work of models, views and controllers. 2. ActiveRecord: Master the use of ORM tools and simplify database operations. 3. Widgets and Helpers: Familiar with built-in components and helper functions, and quickly build the user interface. Mastering these core concepts and best practices will help you stand out in the interview.

Advanced ActiveRecord and migration tools in the Yii framework are the key to efficiently managing databases. 1) Advanced ActiveRecord supports complex queries and data operations, such as associated queries and batch updates. 2) The migration tool is used to manage database structure changes and ensure secure updates to the schema.

Developing a RESTful API in the Yii framework can be achieved through the following steps: Defining a controller: Use yii\rest\ActiveController to define a resource controller, such as UserController. Configure authentication: Ensure the security of the API by adding HTTPBearer authentication mechanism. Implement paging and sorting: Use yii\data\ActiveDataProvider to handle complex business logic. Error handling: Configure yii\web\ErrorHandler to customize error responses, such as handling when authentication fails. Performance optimization: Use Yii's caching mechanism to optimize frequently accessed resources and improve API performance.

Yii is a high-performance PHP framework designed for fast development and efficient code generation. Its core features include: MVC architecture: Yii adopts MVC architecture to help developers separate application logic and make the code easier to maintain and expand. Componentization and code generation: Through componentization and code generation, Yii reduces the repetitive work of developers and improves development efficiency. Performance Optimization: Yii uses latency loading and caching technologies to ensure efficient operation under high loads and provides powerful ORM capabilities to simplify database operations.

Strategies to improve Yii2.0 application performance include: 1. Database query optimization, using QueryBuilder and ActiveRecord to select specific fields and limit result sets; 2. Caching strategy, rational use of data, query and page cache; 3. Code-level optimization, reducing object creation and using efficient algorithms. Through these methods, the performance of Yii2.0 applications can be significantly improved.
