Add phpstan level 0 (#1022)

* Remove unused arguments

* Fix return types

* Removed unused parameter and argument

* Add phpstan job

* merge files

* Delete phpstan-baseline.neon

* Delete static-analysis.yml

* merge workflows

* Update composer.json

* format yaml

* install composer reps

* fix yaml

Co-authored-by: Till Krüss <tillkruss@users.noreply.github.com>

.github/workflows/coding-standards.yml

@@ -10,7 +10,7 @@ on:
 jobs:
 
   php-cs-fixer:
-    name: linter
+    name: PHP CS Fixer
     runs-on: ubuntu-latest
 
     steps:
@@ -19,10 +19,44 @@ jobs:
         uses: actions/checkout@v3
 
       - name: Setup PHP with Composer and extensions
+        uses: shivammathur/setup-php@v2
         with:
           php-version: 8.1
           tools: php-cs-fixer
-        uses: shivammathur/setup-php@v2
 
       - name: Run php-cs-fixer
         run: php-cs-fixer fix --diff --dry-run --allow-risky=yes --using-cache=no
+
+  phpstan:
+     name: PHPStan
+     runs-on: ubuntu-latest
+
+     steps:
+
+       - name: Checkout
+         uses: actions/checkout@v3
+
+       - name: Setup PHP with Composer and extensions
+         uses: shivammathur/setup-php@v2
+         with:
+           php-version: 8.2
+           tools: phpstan
+
+       - name: Get Composer cache directory
+         id: composer-cache
+         run: echo "directory=$(composer config cache-dir)" >> $GITHUB_OUTPUT
+
+       - name: Cache Composer dependencies
+         uses: actions/cache@v3
+         with:
+           path: ${{ steps.composer-cache.outputs.directory }}
+           key: tests-php-${{ matrix.php }}-composer-${{ hashFiles('**/composer.lock') }}
+           restore-keys: tests-php-${{ matrix.php }}-composer
+
+       - name: Install Composer dependencies
+         env:
+           PHP_VERSION: ${{ matrix.php }}
+         run: composer install --ansi --no-progress --prefer-dist $(if [ "$PHP_VERSION" == "8.0" ]; then echo "--ignore-platform-reqs"; fi;)
+
+       - name: Run PHPStan
+         run: phpstan analyse