Enable testing against php 7.4

acrobat · acrobat · commit 923dfd1cd987 · 2019-11-14T11:10:51.000+01:00
diff --git a/.travis.yml b/.travis.yml
@@ -13,6 +13,7 @@ php:
   - 7.1
   - 7.2
   - 7.3
+  - 7.4snapshot
 
 matrix:
   include:
