Use phpstan-codeigniter

Author: paulbalandan

composer.json

@@ -19,13 +19,15 @@
     },
     "require-dev": {
         "codeigniter/coding-standard": "^1.5",
+        "codeigniter/phpstan-codeigniter": "^v1.1",
         "ergebnis/composer-normalize": "^2.28",
         "fakerphp/faker": "^1.9",
         "kint-php/kint": "^5.0.4",
         "mikey179/vfsstream": "^1.6",
         "nexusphp/cs-config": "^3.6",
         "nexusphp/tachycardia": "^1.0",
         "php-coveralls/php-coveralls": "^2.5",
+        "phpstan/extension-installer": "^1.3",
         "phpstan/phpstan": "^1.10.2",
         "phpstan/phpstan-strict-rules": "^1.5",
         "phpunit/phpcov": "^8.2",
@@ -70,7 +72,8 @@
     },
     "config": {
         "allow-plugins": {
-            "ergebnis/composer-normalize": true
+            "ergebnis/composer-normalize": true,
+            "phpstan/extension-installer": true
         },
         "optimize-autoloader": true,
         "preferred-install": "dist",