added phpstan

.github/workflows/phpstan.yml

@@ -0,0 +1,28 @@
+name: PHPStan
+
+on:
+  push:
+    paths:
+      - '**.php'
+      - 'phpstan.neon.dist'
+      - '.github/workflows/phpstan.yml'
+
+jobs:
+  phpstan:
+    name: phpstan
+    runs-on: ubuntu-latest
+    timeout-minutes: 5
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: '8.2'
+          coverage: none
+
+      - name: Install composer dependencies
+        uses: ramsey/composer-install@v2
+
+      - name: Run PHPStan
+        run: ./vendor/bin/phpstan --error-format=github

composer.json

@@ -5,6 +5,12 @@
     "require": {
         "php": "^8.2"
     },
+    "require-dev": {
+        "laravel/pint": "^1.0",
+        "phpstan/extension-installer": "^1.1",
+        "phpstan/phpstan-deprecation-rules": "^1.0",
+        "phpstan/phpstan-phpunit": "^1.0"
+    },
     "license": "MIT",
     "autoload": {
         "psr-4": {
@@ -18,8 +24,15 @@
             "role": "Developer"
         }
     ],
+    "scripts": {
+        "analyse": "vendor/bin/phpstan analyse",
+        "format": "vendor/bin/pint"
+    },
     "config": {
-        "sort-packages": true
+        "sort-packages": true,
+        "allow-plugins": {
+            "phpstan/extension-installer": true
+        }
     },
     "minimum-stability": "dev",
     "prefer-stable": true

phpstan.neon.dist

@@ -0,0 +1,10 @@
+includes:
+    - phpstan-baseline.neon
+
+parameters:
+    level: 5
+    paths:
+        - src
+    tmpDir: build/phpstan
+    checkMissingIterableValueType: false
+