Run tests with PHP 5.6, too

thekid · thekid · commit 94ca11a89276 · 2019-09-09T22:02:02.000+02:00
diff --git a/.travis.yml b/.travis.yml
@@ -5,6 +5,7 @@ language: php
 dist: trusty
 
 php:
+  - 5.6
   - 7.0
   - 7.1
   - 7.2

-Original file line number
+Diff line change
 dist: trusty
 php:
 +  - 5.6
   - 7.0
   - 7.1
   - 7.2