switch to php 8 (#11)

* refactor github workflow

* update composer dependencies for PHP ^8.1 and require current dev-main versions of interfaces and commons

* add .uuid files to git ignore list

* adapt classes for PHP 8

Author: gregor-j

.github/workflows/main.yml

@@ -0,0 +1,53 @@
+# Controls when the action will run.
+on:
+  # Triggers the workflow on push or pull request events but only for the main branch
+  push:
+  pull_request:
+
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+permissions:
+  contents: "read"
+
+# A workflow run is made up of one or more jobs that can run sequentially or in parallel
+jobs:
+  # composer validation
+  composer:
+    name: "composer config validation"
+    runs-on: "ubuntu-latest"
+    steps:
+      - uses: "actions/checkout@v3"
+      - name: "Validate composer.json"
+        run: "composer validate --strict"
+  # PHP lint and PHPStan for different PHP versions
+  php:
+    runs-on: "ubuntu-latest"
+    strategy:
+      matrix:
+        php-version:
+          - "8.1"
+          - "8.2"
+          - "8.3"
+    name: "PHP ${{ matrix.php-version }}"
+    steps:
+      - name: "git checkout"
+        uses: "actions/checkout@v3"
+      - name: "setup PHP"
+        uses: "shivammathur/setup-php@v2"
+        with:
+          php-version: "${{ matrix.php-version }}"
+          coverage: "xdebug"
+      - name: "check PHP version"
+        run: "php -v"
+      - name: "lint PHP files"
+        run: "php -l src/"
+#      - name: "install composer dependencies"
+#        run: "composer install --prefer-dist --no-progress"
+#      # PHPStan
+#      - name: "PHPStan static analysis"
+#        uses: "php-actions/phpstan@v3"
+#        with:
+#          php_version: "${{ matrix.php-version }}"
+#          configuration: "phpstan.neon"
+#          path: "exceptions/ src/ tests/"

.github/workflows/php.yml

@@ -1 +1,2 @@
 vendor/
+.uuid

.gitignore

@@ -13,12 +13,12 @@
   "homepage": "https://php-sap.github.io/",
   "minimum-stability": "stable",
   "require": {
-    "php": ">=7.4",
+    "php": "^8.1",
     "ext-json": "*",
     "phpunit/phpunit": "^9.6",
     "kba-team/memory-container": "^2.0",
-    "php-sap/interfaces": "^4.0",
-    "php-sap/common": "^5.0"
+    "php-sap/interfaces": "dev-main",
+    "php-sap/common": "dev-main"
   },
   "autoload": {
     "psr-4": {