language: php
php:
    - "5.6"
    - "7.0"
before_script:
    - "composer install"
    - "composer require satooshi/php-coveralls"
after_success:
    - "travis_retry php vendor/bin/coveralls -v"

language: php
php:
    - "7.0"
    - "7.1"
    - "7.2"
    - "nightly"
before_script:
    - "composer install"
    - "composer require satooshi/php-coveralls"
after_success:
    - "travis_retry php vendor/bin/coveralls -v"

Build only on php 7.x
Build only on php 7.x