Merge pull request #1 from WyriHaximus/ci-travis-fix-test-against-nig…

…htly

[Travis] Fix test against nightly

.travis.yml

@@ -11,6 +11,7 @@ php:
   - 5.6
   - 7.0
   - 7.1
+  - nightly
   - hhvm
 
 ## Build matrix for lowest and highest possible targets
@@ -24,6 +25,8 @@ matrix:
       env: dependencies=lowest
     - php: 7.1
       env: dependencies=lowest
+    - php: nightly
+      env: dependencies=lowest
     - php: hhvm
       env: dependencies=lowest
     - php: 5.5
@@ -34,13 +37,15 @@ matrix:
       env: dependencies=highest
     - php: 7.1
       env: dependencies=highest
+    - php: nightly
+      env: dependencies=highest
     - php: hhvm
       env: dependencies=highest
 
 ## Install or update dependencies
 install:
   - composer validate
-  - composer config platform.php $TRAVIS_PHP_VERSION
+  - composer config --unset platform.php
   - if [ -z "$dependencies" ]; then composer install --prefer-dist -n; fi;
   - if [ "$dependencies" = "lowest" ]; then composer update --prefer-lowest --prefer-dist -n; fi;
   - if [ "$dependencies" = "highest" ]; then composer update --prefer-dist -n; fi;