language: php
php:
  - "5.5"
  - "5.4"
  - "5.3"
script: phpunit tests

language: php
php:
  - "7.0"
  - "5.6"
  - "5.5"
  - "5.4"
  - "5.3"
script: phpunit tests

Add PHP 5.6 and 7.0 to Travis config
Add PHP 5.6 and 7.0 to Travis config