Create php.yml

Author: SebKay

.github/workflows/php.yml

@@ -0,0 +1,22 @@
+name: PHP
+
+on: [pull_request]
+
+jobs:
+  lint:
+    name: Lint
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Setup PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: 8.2
+
+      - name: Install dependencies
+        run: composer build:dev
+
+      - name: Validate against coding standards
+        run: composer lint