Allow PHP 8

Closes #14

Author: fezfez

.github/workflows/main.yml

@@ -9,6 +9,7 @@ jobs:
           - '7.2'
           - '7.3'
           - '7.4'
+          - '8.0'
 
     name: PHP ${{ matrix.php-version }}
 
@@ -29,6 +30,12 @@ jobs:
           key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.lock') }}
           restore-keys: ${{ runner.os }}-composer-
 
+      - name: Update dependencies
+        if: matrix.php-version == '8.0'
+        run: |
+          rm composer.lock
+          composer remove --dev --no-update friendsofphp/php-cs-fixer
+
       - name: Install dependencies
         run: composer install
 

composer.json

@@ -24,7 +24,7 @@
         }
     },
     "require": {
-        "php": "^7.2",
+        "php": "^7.2 || ^8.0",
         "ext-json": "*",
         "psr/http-server-middleware": "^1.0",
         "webonyx/graphql-php": "^14.3"