Yii2 environment configuration and PHP settings

Yii2 is a powerful PHP framework. In order to develop successfully using the Yii2 framework, we need to have the correct environment configuration and PHP settings. This article will introduce in detail how to configure the Yii2 environment and related PHP settings.

1. Install the Yii2 framework
   First, we need to install the Yii2 framework. You can install Yii2 through Composer and execute the following command:

composer global require "fxp/composer-asset-plugin:^1.4.2"
composer create-project --prefer-dist yiisoft/yii2-app-basic yii2-app

The above command will install the Composer Asset plugin globally and create a basic Yii2 application.

2. Configuring the Web Server
   The Yii2 framework needs to be running on the web server. We can use Apache or Nginx as web server. The following uses Apache as an example for configuration.

First, point the web root directory to webthe directory of your Yii2 application. In Apache's configuration file, find DocumentRootthe directive and set it to webthe absolute path to the directory of your Yii2 application, for example:

DocumentRoot /var/www/html/yii2-app/web

Then, enable URL rewriting so that the Yii2 application can handle URL routing. In Apache's configuration file, find <Directory>the directive and AllowOverrideset it to All, for example:

<Directory /var/www/html/yii2-app/web