update .travis.yml

.travis.yml

@@ -2,7 +2,7 @@ language: php
 sudo: false
 dist: trusty
 php:
-  - 7.0
+  - 7
   - 7.1
   - 7.2
 cache:
@@ -16,9 +16,11 @@ env:
 before_script:
   - composer self-update
   - composer update $DEPENDENCIES
+  - if [[ $TRAVIS_PHP_VERSION = '7.1' && DEPENDENCIES = '' ]]; then COVERAGE="--coverage-clover=coverage.clover"; else phpenv config-rm xdebug.ini; fi
+  - if [[ $TRAVIS_PHP_VERSION = '7.1' && DEPENDENCIES = '' ]]; then composer require --dev phpstan/phpstan-shim friendsofphp/php-cs-fixer; fi
 script:
-  - ./vendor/bin/phpunit --coverage-clover=coverage.clover;
+  - ./vendor/bin/phpunit $COVERAGE;
   - if [ "$TRAVIS_PHP_VERSION" = "7.1" ]; then wget https://github.com/FriendsOfPHP/PHP-CS-Fixer/releases/download/v2.4.0/php-cs-fixer.phar -O php-cs-fixer && php php-cs-fixer fix --config=.php_cs -v --dry-run --using-cache=no --path-mode=intersection `git diff --name-only --diff-filter=ACMRTUXB $TRAVIS_COMMIT_RANGE`; fi
-
+  - if [[ $TRAVIS_PHP_VERSION = '7.1' && DEPENDENCIES = '' ]]; then ./vendor/bin/phpstan analyse -l max src tests --no-progress --no-interaction; fi
 after_script:
   - if [ "$TRAVIS_PHP_VERSION" = "7.1" ]; then wget https://scrutinizer-ci.com/ocular.phar && php ocular.phar code-coverage:upload --format=php-clover coverage.clover; fi