yii1.1 installation steps detailed explanation
Installation
Yii installation by It consists of the following two steps:
1. Download the Yii framework from yiiframework.com.
2. Extract the Yii compressed package to a web-accessible directory.
Tips:
It is not necessary to install in the Web directory. Each Yii application has an entry script, and only it must be exposed to Web users. Other PHP scripts (including Yii) should be protected from web access as they could be exploited by hackers.
Requirements
After installing Yii, you may want to verify whether your server meets the requirements for using Yii. Just enter the following URL in the browser to access the requirements test Script:
http://hostname/path/to/yii/requirements/index.php
The minimum requirement for Yii is that your web server supports it PHP 5.1.0
or higher. Yii is tested with the Apache HTTP server on Windows and Linux systems. Theoretically, Yii can also work normally on other web servers and platforms that support PHP 5.1.
Recommended related articles and tutorials: yii tutorial
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Yiiisversatileavssuitable Projectsofallsizes.1) Simple Sites, YiiOofferseassetupandrapiddevelopment.2) ForcomplexProjects, ITModularityandrbacSystemManagescalabilityandSecurity effective.

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The Yii framework is suitable for developing web applications of all sizes, and its advantages lie in its high performance and rich feature set. 1) Yii adopts an MVC architecture, and its core components include ActiveRecord, Widget and Gii tools. 2) Through the request processing process, Yii efficiently handles HTTP requests. 3) Basic usage shows a simple example of creating controllers and views. 4) Advanced usage demonstrates the flexibility of database operations through ActiveRecord. 5) Debugging skills include using the debug toolbar and logging system. 6) Performance optimization It is recommended to use cache and database query optimization, follow coding specifications and dependency injection to improve code quality.

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