Create php.yml

.github/workflows/php.yml

@@ -0,0 +1,36 @@
+name: Unit tests
+
+on: [push, pull_request]
+
+permissions:
+  contents: read
+
+jobs:
+  tests:
+    strategy:
+      matrix:
+        operating-system: [ubuntu-latest, windows-latest, macos-latest]
+        php-versions: ['7.1']
+    runs-on: ${{ matrix.operating-system }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Setup PHP
+        uses: shivammathur/setup-php@2.28.0
+        with:
+          php-version: ${{ matrix.php-versions }}
+          extensions: mbstring, curl
+      - name: Get composer cache directory
+        id: composer-cache
+        run: echo "::set-output name=dir::$(composer config cache-files-dir)"
+      - name: Cache composer dependencies
+        uses: actions/cache@v2
+        with:
+          path: ${{ steps.composer-cache.outputs.dir }}
+          key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.lock') }}
+          restore-keys: ${{ runner.os }}-composer-
+      - name: Install dependencies
+        run: |
+          composer install --no-progress --prefer-dist --optimize-autoloader
+      - name: Test with phpunit
+        run: composer phpunit