.travis.yml

language: php
php:
  - '5.4'
  - '5.5'
  - '5.6'
  - '7.0'
  - '7.1'
  - '7.2'
  - nightly
matrix:
  include:
    - php: "5.3"
      dist: precise
git:
#there should rarely be a need to clone 50 deep, so this is just reducing build-time
  depth: 5
before_script:
# no need to provide coverage more than once and no need for the speedbump otherwise
  - if [[ ${TRAVIS_PHP_VERSION:0:3} != "7.1" ]]; then phpenv config-rm xdebug.ini || true ; fi
# no need to test formatting more than once and php_codesniffer does not work with older php
  - if [[ ${TRAVIS_PHP_VERSION:0:3} != "5.6" ]]; then composer remove --dev squizlabs/php_codesniffer ; fi
  - composer install
script:
# since it's disabled otherwise...
  - if [[ ${TRAVIS_PHP_VERSION:0:3} == "5.6" ]]; then composer check-style ; fi
  - composer test