language: php

php:
  # using major version aliases

  # aliased to a recent 7.x version
  - 7.0
  # aliased to a recent 7.x version
  - 7.1
  # aliased to a recent 7.x version
  - 7.2


before_script:
  - composer self-update
  - composer install --prefer-source --no-interaction --dev