update .travis.yml

.travis.yml

@@ -1,18 +1,19 @@
-language: php
-php:
-  - 7.0
-  - nightly
-
-script:
-  - phpize
-  - ./configure
-  - make
-  - REPORT_EXIT_STATUS=1 TEST_PHP_ARGS="-q --show-diff" make test
-
-notifications:
-  webhooks:
-    urls:
-      - https://webhooks.gitter.im/e/428fac7bd9f4b867c347
-    on_success: always
-    on_failure: always
-    on_start: always
+language: php
+php:
+  - 7.0
+  - 7.1
+  - nightly
+
+script:
+  - phpize
+  - ./configure
+  - make
+  - REPORT_EXIT_STATUS=1 TEST_PHP_ARGS="-q --show-diff" make test
+
+notifications:
+  webhooks:
+    urls:
+      - https://webhooks.gitter.im/e/428fac7bd9f4b867c347
+    on_success: always
+    on_failure: always
+    on_start: always