try to use php-8

jsteemann · jsteemann · commit 251f968fa5c5 · 2021-06-12T20:53:31.000+02:00
diff --git a/.travis.yml b/.travis.yml
@@ -13,6 +13,7 @@ matrix:
     - php: '7.2'
     - php: '7.3'
     - php: '7.4'
+    - php: '8.0'
   allow_failures:
     - php: hhvm
 
