language: php

php:
  - 5.5
  - 5.6
  - 7.0
  - 7.1
  - hhvm

# This triggers builds to run on the new TravisCI infrastructure.
# See: http://docs.travis-ci.com/user/workers/container-based-infrastructure/
sudo: false

## Cache composer
cache:
  directories:
    - $HOME/.composer/cache

matrix:
  include:
    - php: 5.5.9
      env: 'COMPOSER_FLAGS="--prefer-stable --prefer-lowest"'

before_script:
  - travis_retry composer update ${COMPOSER_FLAGS}

script:
  - vendor/bin/phpcs --standard=psr2 src/
  - vendor/bin/phpunit
