composer: How to find the exact version of a package?

Question

I know it's an old question, but...

composer.phar show

Will show all the currently installed packages and their version information. (This was shown in previous versions of Composer only when using the now-deprecated -i option.)

To see more details, specify the name of the package as well:

composer.phar show monolog/monolog

That will show many things, including commit MD5 hash, source URL, license type, etc.

You can use composer show like this:

composer show package/name

If you're just interested to get the output as the package version number like: 1.7.5 or 1.x-dev or dev-master.

Linux console snippet (composer & sed):

composer show 'monolog/monolog' | sed -n '/versions/s/^[^0-9]\+\([^,]\+\).*$/\1/p'

or (composer, grep & cut):

composer show 'monolog/monolog' | grep 'versions' | grep -o -E '\*\ .+' | cut -d' ' -f2 | cut -d',' -f1;

Technically "dev-master" is the exact version that you ended up using there. It is the development branch, and thus the very latest version.

The best place to look for available versions for composer packages is Packagist since that's the place composer loads the versions from when you install packages. The monolog versions are listed on http://packagist.org/packages/monolog/monolog.

You can use show all, specially when dont have package.json file, get available packages from packagist.org:

composer show "monolog/monolog" --all

Also you can specify versions

composer show "monolog/monolog" 1.* --all