adhere to (mostly) PSR12, check codestyle in CI

.github/workflows/php.yml

@@ -35,5 +35,8 @@ jobs:
         if: steps.composer-cache.outputs.cache-hit != 'true'
         run: composer install --no-progress
 
+      - name: Check codestyle
+        run: composer run-script check-codestyle
+
       - name: Run test suite
         run: composer run-script test

AltoRouter.php

@@ -1,4 +1,5 @@
 <?php
+
 /*
 MIT License
 
@@ -13,7 +14,6 @@ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLI
 
 class AltoRouter
 {
-
     /**
      * @var array Array of all routes (incl. named routes).
      */

composer.json

@@ -30,7 +30,8 @@
       "classmap": ["AltoRouter.php"]
    },
    "scripts": {
-      "test": "vendor/bin/phpunit",
+      "test": "phpunit",
-      "check-syntax": "find . -name '*.php' -not -path './vendor/*' -print0 | xargs -0 -n1 php --define error_reporting=-1 -l"
+      "check-syntax": "find . -name '*.php' -not -path './vendor/*' -print0 | xargs -0 -n1 php --define error_reporting=-1 -l",
+      "check-codestyle": "phpcs -ns"
    }
 }

phpcs.xml

@@ -1,9 +1,10 @@
 <?xml version="1.0"?>
 <ruleset name="rules">
     <description>rules</description>
-    <rule ref="PSR2"/>
+    <rule ref="PSR12">
+        <exclude name="PSR1.Classes.ClassDeclaration.MissingNamespace" />
+    </rule>
     <rule ref="Generic.Arrays.DisallowLongArraySyntax"/>
-    <file>tests</file>
     <file>AltoRouter.php</file>
     <file>examples/</file>
     <arg name="colors"/>