add CI

.github/workflows/ci.yml

@@ -0,0 +1,34 @@
+name: CI
+
+on: [push, pull_request]
+
+permissions:
+  contents: read
+
+jobs:
+  CI:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        php:
+          - '8.1'
+          - '8.2'
+        coverage:
+          - none
+        include:
+          - php: '8.3'
+            coverage: xdebug
+    steps:
+      - uses: shivammathur/[email protected]
+        with:
+          php-version: ${{ matrix.php }}
+          coverage: ${{ matrix.coverage }}
+      - uses: actions/checkout@v3
+        with:
+          fetch-depth: 2 # required by Scrutinizer
+      - run: composer install --no-progress --no-ansi --no-interaction --dev --prefer-dist
+      - run: php test/test.php
+      - if: matrix.coverage == 'xdebug'
+        uses: sudo-bot/action-scrutinizer@latest
+        with:
+          cli-args: '--format=php-clover test/build/clover.xml'