language: php
php:
  - '5.4'
  - '5.5'
  - '5.6'
  - '7.0'
  - '7.3'
  - '7.4'
  - hhvm

install:
- source ~/.nvm/nvm.sh 
- nvm ls-remote
- nvm install stable
- nvm use stable
script:
- make