Merge pull request #263 from WyriHaximus/patch-1

Test against (upcoming) PHP 7.3 on Travis

.travis.yml

@@ -4,6 +4,7 @@ php:
   - 7.0
   - 7.1
   - 7.2
+  - 7.3
 
 env:
   - VALIDATION=false
@@ -28,7 +29,7 @@ before_script:
   - if [[ $STATIC_ANALYSIS = true ]]; then composer require phpstan/phpstan --no-update; fi
   - composer install
   - set -e # Stop on first error.
-  - phpenv config-rm xdebug.ini
+  - phpenv config-rm xdebug.ini || true
   - if find . -name "*.php" -path "./src/*" -path "./experiments/*" -path "./tools/*" -path "./syntax-visualizer/server/src/*" -exec php -l {} 2>&1 \; | grep "syntax error, unexpected"; then exit 1; fi
   - if find . -name "*.php" -path "./tests/*" -path "./validation/*" -maxdepth 0 --exec php -l {} 2>&1 \; | grep "syntax error, unexpected"; then exit 1; fi