Create lint-php.yml

.github/workflows/lint-php.yml

@@ -0,0 +1,35 @@
+# This workflow is provided via the organization template repository
+#
+# https://github.com/nextcloud/.github
+# https://docs.github.com/en/actions/learn-github-actions/sharing-workflows-with-your-organization
+
+name: Lint
+
+on:
+  pull_request:
+  push:
+    branches:
+      - master
+      - stable*
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        php-versions: ["7.3", "7.4", "8.0"]
+
+    name: php
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+
+      - name: Set up php ${{ matrix.php-versions }}
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: ${{ matrix.php-versions }}
+          coverage: none
+
+      - name: Lint
+        run: composer run lint