include php 7.3 in travis checks

mavimo · ondrejmirtes · commit 0981ec79b637 · 2019-01-02T12:49:45.000+01:00
diff --git a/.travis.yml b/.travis.yml
@@ -2,6 +2,7 @@ language: php
 php:
   - 7.1
   - 7.2
+  - 7.3
 env:
   - dependencies=lowest
   - dependencies=highest
