Add PHPStan

.gitattributes

@@ -3,4 +3,5 @@
 .gitattributes     export-ignore
 .gitignore         export-ignore
 .scrutinizer.yml   export-ignore
+phpstan.neon.dist  export-ignore
 phpunit.xml.dist   export-ignore

.github/workflows/static-analysis.yml

@@ -0,0 +1,19 @@
+name: Static Analysis
+
+on: [ push, pull_request ]
+
+jobs:
+  phpstan:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/cache@v3
+        with:
+          path: ~/.cache/composer/files
+          key: php-8.2-composer-${{ hashFiles('**/composer.json') }}
+      - uses: shivammathur/setup-php@v2
+        with:
+          php-version: 8.2
+      - run: composer update --no-interaction --no-progress --prefer-dist
+      - run: vendor/bin/phpstan analyse --error-format=github

composer.json

@@ -17,7 +17,8 @@
         "illuminate/database": "^10.0"
     },
     "require-dev": {
-        "phpunit/phpunit": "^10.0"
+        "phpunit/phpunit": "^10.0",
+        "phpstan/phpstan": "^1.10"
     },
     "autoload": {
         "psr-4": {

phpstan.neon.dist

@@ -0,0 +1,5 @@
+parameters:
+    level: 0
+    paths:
+        - src
+        - tests