Plv requires PHP 5.3.3(or later)
Download the plv.phar executable.
$ curl -LO http://nagodon.github.io/plv/plv.phar
Display of each programing language version.
$ php plv.phar check [nodejs|perl|php|python|ruby|scala]
Display of list of supported programing language.
$ php plv.phar language
Plv is licensed under the MIT License - see the LICENSE file for details