Set up and configure PHPStan

.github/workflows/phpcs.yml

@@ -13,10 +13,10 @@ on:
 
 jobs:
   phpcs:
-    strategy:
-      matrix:
-        php: [ '8.3' ]
     if: github.event.pull_request.draft == false
-    uses: alleyinteractive/.github/.github/workflows/php-coding-standards.yml@main
+    uses: alleyinteractive/.github/.github/workflows/php-composer-command.yml@main
     with:
-      php: ${{ matrix.php }}
+      php: '8.3'
+      command: |
+        phpcs
+        # phpstan

composer.json

@@ -12,14 +12,17 @@
     "alleyinteractive/alley-coding-standards": "^2.0.1",
     "mantle-framework/testkit": "^0.12.7",
     "phpspec/prophecy": "^1.17.0",
-    "yoast/phpunit-polyfills": "^2.0"
+    "yoast/phpunit-polyfills": "^2.0",
+    "szepeviktor/phpstan-wordpress": "^1.3"
   },
   "scripts": {
     "phpcbf" : "phpcbf .",
     "phpcs" : "phpcs .",
     "phpunit" : "phpunit",
+    "phpstan": "phpstan --memory-limit=1024M",
     "test": [
       "@phpcs",
+      "@phpstan",
       "@phpunit"
     ],
     "test-release": "rsync -rc --exclude-from=.distignore ./ ~/Desktop/publish-to-apple-news/ --delete --delete-excluded"

phpstan.neon

@@ -0,0 +1,10 @@
+includes:
+  - vendor/szepeviktor/phpstan-wordpress/extension.neon
+
+parameters:
+  # Level 9 is the highest level
+  level: max
+
+  paths:
+    # - admin
+    - includes