Get currently installed versions in composer

Get currently installed versions in composer

References

Reference NO 1

http://stackoverflow.com/questions/15185459/get-currently-installed-versions-in-composer

Reference NO 2

http://getcomposer.org/doc/01-basic-usage.md

Reference NO 3

http://getcomposer.org/download/

Reference NO 4

http://www.sitepoint.com/php-dependency-management-with-composer/

Reference NO 5

http://symfony.com/doc/current/book/installation.html

Reference NO 6

http://symfony.com/doc/current/components/using_components.html

Reference NO 7

https://github.com/composer/composer

Reference NO 8

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