Installing via Composer

Installing Composer

If you do not already have Composer installed, you may do so by following the instructions at getcomposer.org. On Linux and Mac OS X, you'll run the following commands:

curl -sS https://getcomposer.org/installer | php
mv composer.phar /usr/local/bin/composer

On Windows, you'll download and run Composer-Setup.exe.

Please refer to the Troubleshooting section of the Composer Documentation if you encounter any problems. If you are new to Composer, we also recommend to read at least the Basic usage section of the Composer documentation.

In this guide all composer commands assume you have installed composer globally so that it is available as the composer command. If you are using the composer.phar in the local directory instead, you have to adjust the example commands accordingly.

If you had Composer already installed before, make sure you use an up to date version. You can update Composer by running composer self-update.

Note: During the installation of Yii, Composer will need to request a lot of information from the Github API. The number of requests depends on the number of dependencies your application has and may be bigger than the Github API rate limit. If you hit this limit, Composer may ask for your Github login credentials to obtain a Github API access token. On fast connections you may hit this limit earlier than Composer can handle so we recommend to configure the access token before installing Yii. Please refer to the Composer documentation about Github API tokens for instructions on how to do this.