Merge pull request #34 from chalasr/php8

Allow PHP 8

Author: dunglas

.travis.yml

@@ -3,12 +3,12 @@ language: php
 jobs:
   include:
     - php: '7.1'
-    - php: '7.2'
     - php: '7.3'
     - php: '7.4'
       env: lint=1
     - php: '7.4'
       env: deps=low
+    - php: '8.0snapshot'
 
 cache:
   directories:

composer.json

@@ -16,10 +16,10 @@
         }
     ],
     "require": {
-        "php": "^7.1.3",
-        "symfony/config": "^4.3.7|^5.0",
-        "symfony/dependency-injection": "^4.3.7|^5.0",
-        "symfony/http-kernel": "^4.3.7|^5.0",
+        "php": ">=7.1.3",
+        "symfony/config": "^4.4|^5.0",
+        "symfony/dependency-injection": "^4.4|^5.0",
+        "symfony/http-kernel": "^4.4|^5.0",
         "symfony/mercure": "^0.3|^0.4"
     },
     "autoload": {