allow php8 (#51)

* allow php8
* add nightly (8rc)
* adjust ci

Author: nick-zh

.travis.yml

@@ -37,6 +37,12 @@ jobs:
     - DEPENDENCIES="stable"
     script:
     - PHP=php make coverage
+  - stage: coverage
+    php: 'nightly'
+    env:
+      - DEPENDENCIES="stable"
+    script:
+      - PHP=php make coverage
   - stage: integration
     php: '7.4'
     env:
@@ -118,6 +124,15 @@ jobs:
     script:
     - make platform
     - PHP=php make phpunit-integration
+  - stage: integration
+    php: 'nightly'
+    env:
+      - DEPENDENCIES="stable"
+      - INTEGRATION_TEST="enabled"
+      - CONFLUENT_VERSION=6.0.0
+    script:
+      - make platform
+      - PHP=php make phpunit-integration
 after_script:
 - make clean
 

composer.json

@@ -11,7 +11,7 @@
     }
   ],
   "require": {
-    "php": "^7.3",
+    "php": "^7.3|^8.0",
     "ext-curl": "*",
     "ext-json": "*",
     "psr/http-client": "~1.0",
@@ -21,7 +21,7 @@
     "flix-tech/avro-php": "^4.1"
   },
   "require-dev": {
-    "phpunit/phpunit": "^8.2.3",
+    "phpunit/phpunit": "^8.2.3|^9.0",
     "phpstan/phpstan": "^0.12",
     "raphhh/trex-reflection": "~1.0",
     "doctrine/cache": "~1.3",