Typo here: cofmposer should be composer.

And I like using therequire command for this:

$ php composer.phar require doctrine/doctrine-fixtures-bundle:@dev

This will update this dependency and add it to the list of requirements in thecomposer.json file (as well in thecomposer.lock file)

And actually, it does exactly the 2 steps defined here (plus some validation on what you write in the requirement)

Many bundles and packages suggest modification ofcomposer.json and:

composer update

My intention was to give a hint, that one should avoid updating everything.

The method:

php composer.phar require doctrine/doctrine-fixtures-bundle:@dev

is simpler.

@gajdaw I think it is better to say 'Hey, they say you need to do it that way, but that can cause problems, this is much easier'.