Merge pull request #15 from ghostwriter/feat/psalm-integration

Psalm integration

Author: Ocramius

composer.json

@@ -20,8 +20,6 @@
     "config": {
         "sort-packages": true
     },
-    "extra": {
-    },
     "require": {
         "php": "^7.3 || ~8.0.0",
         "laminas/laminas-http": "^2.15.1",
@@ -31,7 +29,9 @@
     "require-dev": {
         "ext-json": "*",
         "laminas/laminas-coding-standard": "~1.0.0",
-        "phpunit/phpunit": "^9.5.11"
+        "phpunit/phpunit": "^9.5.11",
+        "psalm/plugin-phpunit": "^0.16.1",
+        "vimeo/psalm": "^4.18.0"
     },
     "conflict": {
         "laminas/laminas-stdlib": "<3.2.1"
@@ -56,6 +56,7 @@
         ],
         "cs-check": "phpcs",
         "cs-fix": "phpcbf",
+        "static-analysis": "psalm --shepherd --stats",
         "test": "phpunit --colors=always",
         "test-coverage": "phpunit --colors=always --coverage-clover clover.xml"
     },