PHP 8 Support (#83)

* PHP 8 Support

* Fix whitespace issue

* Run builds on Pull Requests

.github/workflows/run-tests.yml

@@ -1,5 +1,6 @@
 on:
   push:
+  pull_request:
   schedule:
   - cron: '0 0 * * *'
 
@@ -9,7 +10,7 @@ jobs:
 
     strategy:
       matrix:
-        php: [7.4, 7.3, 7.2, 7.1, 7.0]
+        php: [8.0, 7.4, 7.3, 7.2, 7.1, 7.0]
         dependency-version: [prefer-lowest, prefer-stable]
         os: [ubuntu-latest]
 
@@ -34,4 +35,4 @@ jobs:
 
     - name: Check PSR-12 Codestyle
       run: vendor/bin/phpcs --standard=psr12 src/
-      if: matrix.os == 'ubuntu-latest'
+      if: matrix.os == 'ubuntu-latest'

composer.json

@@ -12,7 +12,7 @@
         }
     ],
     "require": {
-        "php": "^7.0",
+        "php": "^7.0|^8.0",
         "symfony/http-foundation": "~2.7|~3.0|~4.0|~5.0",
         "symfony/http-kernel": "~2.7|~3.0|~4.0|~5.0"
     },

src/CorsService.php

@@ -84,7 +84,7 @@ public function handlePreflightRequest(Request $request): Response
     public function addPreflightRequestHeaders(Response $response, Request $request): Response
     {
         $this->configureAllowedOrigin($response, $request);
-        
+
         if ($response->headers->has('Access-Control-Allow-Origin')) {
             $this->configureAllowCredentials($response, $request);