Added PHP 7.2 and 7.3

Signed-off-by: Sacha Telgenhof <[email protected]>

Author: stelgenhof

.travis.yml

@@ -4,6 +4,8 @@ php:
   - 5.6
   - 7.0
   - 7.1
+  - 7.2
+  - 7.3
   - hhvm
   - nightly
 
@@ -29,3 +31,8 @@ matrix:
   include:
     - php: 7.1
       env: PHPSTAN=1
+    - php: 7.2
+      env: PHPSTAN=1
+    - php: 7.3
+      env: PHPSTAN=1
+