Assuming you have got composer installed:
git clone git@github.com:adri/php-vcr-examples.git
cd php-vcr-examples/
composer install
To run the guzzle example, do this:
cd guzzle
../vendor/bin/phpunit .
If you like to record all http requests again, delete the fixture file.
rm test/fixtures/github_adri_php-vcr.yml
../vendor/bin/phpunit .