Add phpstan in CI

.github/workflows/php.yml

@@ -25,17 +25,8 @@ jobs:
     - name: Validate composer.json and composer.lock
       run: composer validate
 
-    - name: Cache Composer packages
-      id: composer-cache
-      uses: actions/cache@v2
-      with:
-        path: vendor
-        key: ${{ runner.os }}-php-${{ hashFiles('**/composer.lock') }}
-        restore-keys: |
-          ${{ runner.os }}-php-
-
     - name: Install dependencies
-      run: composer install --prefer-dist --no-progress --no-suggest
+      run: composer install --prefer-dist --no-progress
 
     - name: Run test suite
-      run: composer run-script test
+      run: composer test

composer.json

@@ -24,16 +24,19 @@
     "guzzlehttp/guzzle": "^6.0 | ^7.0",
     "phpunit/phpunit": "^7.0 | ^9.0",
     "shoppingfeed/coding-style-php": "~2.1.0",
-    "overtrue/phplint": "^1.1"
+    "overtrue/phplint": "^1.1",
+    "phpstan/phpstan": "~1.4.0"
   },
   "scripts": {
     "test": [
       "@tests-unit",
+      "@phpstan",
       "@phpcs"
     ],
     "tests-unit": "vendor/bin/phpunit",
     "phpcs": "vendor/bin/sfcs src --progress -vvv",
-    "phpcsfix": "vendor/bin/sfcs src --progress -vvv --autofix"
+    "phpcsfix": "vendor/bin/sfcs src --progress -vvv --autofix",
+    "phpstan": "vendor/bin/phpstan analyse"
   },
   "scripts-descriptions": {
     "test" : "Run PHPUnit tests suites and Coding standards validator"