How to attach composer to Yii project

There's a good manual about how to attach composer to anything. This is a detailed manual about how to attach composer to existing project based on Yii1 framework.

Download composer

It's good to install composer globally but you can't be sure it's installed on all servers where you project can be.

So it's a good idea po put composer.phar file inside your app. To do that run this line:

curl -sS https://getcomposer.org/installer | php

Require something

As a sample you can require yii framework code with line like this:

php ./composer.phar require yiisoft/yii 1.1.15

That will generate composer.json and composer.lock files and vendor/ dir.

composer.json and composer.lock files should be stored in your git index.

vendor/ dir should be ignored:

echo "/vendor" >>.gitignore

Setup autoloading

Composer cares about autoloading. To enable it you should call a line like this:

require __DIR__ . '/vendor/autoload.php';

You should require this autoload before requiring yii framework code.

There are 3 entry scripts in simple yii app: index.php, protected/yiic.php, protected/tests/bootstrap.php.

Hide everyhing

If vhost points to your app root directory - you should restrict access to composer files.

Code like this in .htaccess will redirect all requests to these files to index.php so they are handled by your app.

RewriteEngine on

RewriteCond %{REQUEST_FILENAME} vendor/ [OR]
RewriteCond %{REQUEST_FILENAME} composer.phar [OR]
RewriteCond %{REQUEST_FILENAME} composer.json [OR]
RewriteCond %{REQUEST_FILENAME} composer.lock
RewriteRule . index.php [L]

Profit

BTW, it's already attached to cleanapp application template.

And it's attached by default to all Yii2 app templates.

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