Add recent PHP versions

SMillerDev · web-flow · commit d558b13d33e7 · 2019-03-18T14:28:12.000+01:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,11 +1,14 @@
 language: php
 php:
-- '7.1'
-- '7.2'
+- 7.1
+- 7.2
+- 7.3
+- 7.4
 - nightly
 env: # important!
 matrix:
   allow_failures:
+  - php: 7.4
   - php: nightly
 
 before_script:
