YII Install 安裝

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Yii is an open source project released under the terms of the BSD License. This means that you can use Yii for free to develop either open-source or proprietary Web applications.

Currently there are two major versions of Yii: 2.0 and 1.1.

Yii 2.0

The latest version of Yii 2 is 2.0.10, released on October 20, 2016. Yii 2.0 is a complete rewrite of Yii on top of PHP 5.4.0. It is aimed to be a state-of-the-art of the new generation of PHP framework. Yii 2.0 is not compatible with 1.1.

• complete change log
• upgrade instructions

There are two ways to install Yii 2: using Composer, or downloading an application template. We highly recommend you to use the former.

Install via Composer

This is the preferred way of installing Yii 2.0. If you do not have Composer yet, you may install it by following the instructions here.

After installing Composer, run the following command to install the Composer Asset Plugin:

php composer.phar global require "fxp/composer-asset-plugin:~1.2.0"

Now choose one of the application templates to start installing Yii 2.0. An application template is a package that contains a skeleton Web application written in Yii.

• To install the basic application template, run the command below:

  php composer.phar create-project yiisoft/yii2-app-basic basic 2.0.10

• To install the advanced application template, run the command below:

  php composer.phar create-project yiisoft/yii2-app-advanced advanced 2.0.10

• Update including require-dev

　　　composer update

　

Note that you may be prompted to enter your GitHub username and password during the installation process. This is normal. Just enter them and continue.

Install from an Archive File

Download one of the following archive files, and then extract it to a Web-accessible folder:

• Yii 2 with basic application template
• Yii 2 with advanced application template

Upgrade from Older Versions

If you are upgrading from Yii 2.0.0 with composer, simply run the following commands in your project's root directory:

First, make sure you have the latest version of the Composer Asset Plugin:

php composer.phar global require "fxp/composer-asset-plugin:~1.1.1"

Then upgrade Yii by running:

php composer.phar update yiisoft/yii2 yiisoft/yii2-composer bower-asset/jquery.inputmask

If you installed Yii using an archive file, you should download the new release file, extract it and replace the older version with the new one.

Upgrading from Yii 1.1 is not trivial. Please refer to the guide about upgrading from Yii 1.1.