Add php 7.4 to travis

dmason30 · dmason30 · commit 03b5b20bb3ff · 2020-04-09T00:58:21.000+01:00
diff --git a/.travis.yml b/.travis.yml
@@ -18,6 +18,7 @@ matrix:
   include:
     - php: 7.2
     - php: 7.3
+    - php: 7.4
 
 before_script:
   - travis_retry composer self-update
